| 1- | H.S. Khalid, A..K.Bashir, Y.M .Elkheir S.E. Adam and S. A.KhalidAnticestodal and Amoebicidal activity of Albizzia anthelmintica the 1st. Scientific Conference National Centre for Research Khartoum Sudan January 1993. |
| 2- | H.S. Khalid , A. K. Bashir, Y. M .El Kheir, S. E. Adam and S.A. Khalid in vivo Anthelmintic activity of some Sudanese plants the First International Middle East Conference on pharmaceutical Science Jordan University of Science and Technology. Irbid – Jordan May1993. |
| 3- | M .S .El Tohami and H. S. Khalid The role of medicinal plants in eradication of Schistosomiasis Seminar on Control of Schistosomiasis. |
| 4- | H. S. Khalid Sudanese medicinal plants as a raw material for pharmaceutical Industry Conference of drug industry in the Arab world – union of Arab Councils for Scientific Research – Amman- Jordan -25 -27 August 1997. |
| 5- | H.S. Khalid the role of Medicinal plants in pharmaceutical industry. medicinal & aromatic herbs in the Arab world – union of Arab Councils for Scientific Research – Khartoum 25 -27 November1997. |
| 6- | A / Bagi Elfadil, A / Monem Elshafi, Samia A. Gumma and H.S. Khalid A Sudanese Plant for treatment of Madura Medicinal & Aromatic Herbs in the Arab world – Union of Arab Councils for Scientific Research – Khartoum 25 -27 November 1997. |
| 7- | M.M. El Hassan, A.M. Abd EL Gadir and H.S. Khalidquality assurance and its role in medicinal plants medicinal & aromatic herbs in the Arab world –union of Arab councils for scientific research – Khartoum 25 -27 November 1997. |
| 8- | The 29th International Symposium on Essential Oils. Frankfurt/ Main Germany / Sept. 9/1998. |
| 9- | H.S. Khalid, A.K. Bashir, Y.M. El Kheir and S.A. Khalid Molluscicidal, larvicidal and wormicidal saponin from bark of Albizzia anthelmintica Poster international organic chemistry Symposium (IOCD2 ND) 28 – Feb. – 3 Mar. 1999 Addis Ababa – Ethiopia. |
| 10- | M.Galal, A.H. Mohamed, H.S. Khalid , A.Z. Magaboul and Algazali G.B. The 4th Conference of Medicinal Plants in ArabCountries, University of Ziaar – YEMEN- 15 –17 May 1999. The role of scientific research in the development of medicinal plant inSudan. | |
| 11- | International Congress on Traditional Medicine China – Beijing 24-26 April 2000. | |
| 12- | H.H. Elkamali,H.S.Khalid , B. Fadalla,M.A.Hassanan H.H.ElkamaliConstituents of the Essential oil of CymbopogonnervatusInflorescence from Sudan. “Oral”.The 32ND TH International Symposium on Essential Oils 9-12 September. Wroclaw – Poland | |
| 13- | The 33th International Symposium on Essential Oils 4-7 September 2002 Lisbone – Portugal. | |
| H. S. Khalid, H. H. El Kamali, A.M. A. Atta El Manan. Medicinal plants & Wildlife Trade.The 3rd World Congress on Medicinal & Aromatic plants for Human welfare Bangkok Thailand | ||
| H.S. Khalid, Samia M. A. Badawi and Kheir Alla M.Saeed Haematinic activity of Grewia tenax (FORSSK.) in Rats “Poster”.51th annual congress of the Society for Medicinal Plants Research GA August 31-4thSeptember2003 Kiel– Germany | ||
| 14 | The 34TH international symposium on essential oils 7-10 September 2004 Wurzburg – Germany. | |
| A- | Hatil Hashim EL Kamali and H.S.Khalid Antibacterial activity of the Essential oil of C. schoenanthus ssp. proximus. | |
| B- | M.A. Gadour, A.H.Mohamed and H.S.Khalid. Adrengenic activity of essential oil of C. schoenanthus ssp. Proximus. | |
| 15- | Hassan El Subki Khalid | |
| Medicinal plants and their role in Human Health Care 2nd annual Congress African Pharmaceutical Students Federation Khartoum– Sudan 18 – 22 October 2003. | ||
| 18- | Hatil Hashim Ahmed Elkamali & H.S.KhalidSudanese Cassia senna: quality control determinations”. “oral” | |
| 2nd international conference on chemistry andits applicationDecember 6- 9, 2003 Doha – Qatar | |
| 19- | الرشيد احمد سالم ,حسن السبكي خالد ,عواطف العجيمي وهاطل هاشم الكمالي واقع ومستقبل السودان في توطين وتطوير صناعة الزيوت العطرية |
| Future prospects of sustainable utilization of essential oilsindustry in Sudan.المؤتمر العلمي السادس – المركز القومي للبحوث | |
| – THE SIX SCIENTIFIC CONFERENCE – NATIONAL RESEARCH CENTRE | |
| 20- | Hassan. S. Khalid, W. El Sadig and Hatil .H.A.Elkamaili. Biodiversity and Conservation of Medicinal plants in Sudan The 26th IBS conference – Jamia Hamdard “ Hamdrad University ”New – Delhi 29 –31 December3002-23-00 |
| 21- | الدورة 23 لاتحاد الصيادلة العرب والندوة العلميه المصاحبة تونس -10-12 ديسمير 2005 |
| Arab Pharmacists Union Scientific meetings “Tunisia” Dec. 2005. | |
| 22- | Hassan EL Subki Khalid & Hatil Hashim El Kamali“Quality control determination of some Sudanese medicinal plants “oral” international conference on chemistry & industry future trends for the third millennium Riyadh – SAUDIA ARABIA |
| 23- | Hassan EL Subki Khalid Invited speaker “plenary lecture” Needs for research & development for Sudanese medicinal plants and their utilization International Conference on Health Mysore – Karnataka- INDIA 25 –26 February 2005 |
| 24- | Hatil Hashim El Kamali, Hassan El Subki Khalid & Mohamed EL Amin El HassanDetermination of Trace Elements in Selected SudaneseMedicinal Plants by XRFSpectrometry.Tran Mediterranean Symposium on Organometalic Chemistry and catalysis University of cadi Ayyad ,Faculty of Science 4-7 May Semlalia Marrakech – |
| 25- | Hassan El Subki Khalid (Invited Speaker)2nd International Conference on Pharmaceutical Sciences, Technology and Practice & Indo – Canadian Symposium onNatural Health Products JSS College of Pharmacy – OOTY India– |
| 26- | R. A. Hassouna , Amna S. Khalid & H.S. Khalid,Screening of Sudanese Plants against Mycobacterium tuberculoses “Poster”.55th Annual Congress of the Society for Medicinal Plants RESEARCH 2-6 SEPTEMBER 2007 GRAZ –Austria |
| 27- | MUNA F. Abushama H. Abdelgadir and Hassan EL Subki KhalidAntifungal Activity of Sudanese Essential OILS “ORAL Presentation” The 38th International Symposium on Essential Oils 9-12 September 2007 Graz Austria. |
| 28- | MUNA F. Abushama , H. Abdelgadir Ali Sidique and Hassan EL Subki Khalid antifungal & Anti ticks activity of Sudanese essential oils “ORAL 11th International Symposium on Natural Product Chemistry (ISNPC11) November 2008Karachi Pakistan. |
| 29- | H. S. Khalid & W. Abdulla Diversity of Sudanese Medicinal Plants and the most common traded Species ORAL The IV World Congress of Medicinal Plants –South Africa Cape Town 10-14 November2008. |
| 30 | Medni, Amna B. ; Elbadwi , Samia M.A. and Khalid, HassanA. Toxicity of Cymbopogon proximus (Maharaib) oil extract to Newzeland Rabbits.SETAC Kampala Uganda |
| 34- | 6th Annual International Scientific Conference Pharmaceutical Care : “Putting the Patient First” Friend Ship Hall21-23 February 2010 |
| 35- | H.S. Khalid, W.S. Koko, Haiderabdekgadir.M.A. Abdalla W.S. Medicinal used in Sudanese Traditional MedicineOral PresentationPlants used for Inflammation Innsbruck Austria April 2010 |
| 36- | 58TH INTERNATIONAL CONGRESS & ANNUAL MEETINGS OF THE SOCIETY OF MEDICINAL PLANT AND NATURAL PRODUCTS RESEARCH AND THE 7TH TANNIN BERLIN GERMANY AUGUST /2010 |
| 37- | International Conference on Applied Biotechnology(ICAB) Friend Ship Hall December Khartoum–Sudan 0202 |
| 38- | THE FIRST INTERNATIONAL CONFERENCE FOR HEALTH SCIENCESKHARTOUM COLLEGE FOR MEDICAL SCIENCES SUDAN |
| المؤتمر العالمي الأول للعلوم الصجية كلية الخرطوم للعلوم الطبية | |
| 39- | THE FIRST PHARMACY EDUCATIONAL – EL RAZI COLLEGE |
| المؤتمر التعليمي الصيدلي الأول –كلية الرازي للعلوم الطبية | |
| 40- | Khalid H. Haider Abdelgadie, M.A.. Abdalla W.S. & G.B.Elgazali Ethnobotanical survey of traditional Medicine in the Ingasana area – SudanIndigenous Plant Use Forum 16th Annual Conference 2013With Participation by the Association of African Plant Standards South Africa- Nelspruit 1-4th July 2013 |
| 41- | Khalid H. |
| Haematinic activity of Grewia tenax (FORSSK.) in Rats “Oral”. 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December2013 | |
| 42- | Afra ABD-EL GADIR1 , Hassan E. Khalid and Abd Allh Elkhazeen ANIFUNGAL ACTIVITY OF SOME Sudanese plants “Oral”15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 |
| 43- | Samia H. Abdelrahman 1, Hassan E. Khalid and Khitma Hassan Almalik |
| Trypansoidal Activity of Some Sudanese medicinal Plants Against Experimental Trypanosoma evansi infection “Oral” | |
| 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 44- | Salwa Gilani Babekr1, Naseem Charoo, Hassan Khalid, and Haider AbdelgadirOptimization of the Sudanese Senna alexandrina extrct , the Brine Shrimp toxicity and production of effervescent granules of Senna extract “Oral” |
| 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 45 | Mohamed Saeed, Hassan Khalid and Thomas Eferth Pharmacogenomics of Sudanese Medicinl Plants in cancer cells |
| “Oral”15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 46- | Amina Ahmed, Magdi Awadalla Hassan Khalid and Haider AbdelgadirCytotoxicity using Brine SHRIM Lethality Bioassay of some Anti tumors plants used in Sudanese Traditional Medicines “Oral” |
| 15th Symposia of The Natural Products Research Network forEastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 47 | Mona S. M, Hassan Khalid, A.K. Mudthir, Kamal E.H.El Tahir Nasir, Siddiiqui, Hayder Abdelgadir and Wadah J.A. OsmanEffect of Some plants Extracts used in Sudanese Folkloric Medicine on Carragneenan Induced inflammation “Oral” |
| 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 48 | Haidar Abdelgadir, Hassan Khalid, Wail Elsadig and Salwa MansourAn Ethnobotanical study of medicinal plants in Jebel el Dair national reserve, Northern KORDOFAN “Oral”15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 |
| 49- | Amina I. Ahmed, Hassan Khalid, Hayder Abdelgadir |
| Monograph of selected Sudanese Plant (Ambrosia martima L )Used in Traditional Medicine | |
| An Ethnobotanical study of medicinal plants in Jebel el Dair national reserve, Northern KORDOFAN “Poster ”15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 50- | Salwa Gilani Babekr1, Hassan Khalid, and Haider Abdelgadir Monograph of Senna alexandrina “Poster” |
| 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 51 | Salwa Gilani Babekr1, Hassan Khalid, and Haider Abdelgadir Antimicrobial Antioxidant and the toxicity of Camel Urine |
| 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 |
| 52- | Muna F. Abushama, Yasmin I.Hilmi, Haider M. Abdelgadir,Eltayeb Fadul. Hassan E. KhalidLethality and antioxidant Activity of some Sudanese medicinal plants Fixed Oil |
| 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 | |
| 53- | Yasmin I.Hilmi, Muna F. Abushama, Haider M. Abdelgadir, Assad Khalid . Hassan E. KhalidAntioxidant Activity, Enzymatic inhibition and Brine Shrimp Lethality of essential oils of common species used in Sudan 15th Symposia of The Natural Products Research Network for Eastern and Central Africa (NAPRECA) Khartoum Sudan 7 10 December 2013 |
| 54- | Hassan Khalid Invited SpeakerHerbal Drugs in Sudan- Regulatory AspectsRegulatory and Quality Aspects of Herbal Drugs and BotanicalsNew Delhi – India 1st of February 2014. |
