1. Hala Omer and Sakina Yagi. Phytochemical studies on Aloe sinkatana. First Joint IOCD-ISDNP International Symposium on Natural Products, Kasane Botswana. 2008.
2. Bakali,I., Yagi, S. Georges,B. , Merlin,A, et Deglise, X. Influence des traitements thermiques sur la durabilité de la couleur du bois. S émiare International: Comité Exécutif IAWS/7ème ESTB.Bois et dérivés, Rabat- Ifrane, Maroc. 2010.
3. Loiy El Sir.Ahmed Hassan, Sakina Yagi and Hasnah Mohd Sirat. Biological and Phytochemical Study of Citrullus lanatus var. citroide (Wild Melon). Fourth Saudi Science Conference. Saudia Arabia. March, 2010.
4. Anna El Tahchy, Ismael Muñoz, Charlotte Geny, Sakina Yagi, François Dupire, Elvina Barre, Catherine Guillou, Max Henry, Yves Chapleur, Dominique Laurain-Mattar. Alkaloid screening by GCMS and Acetylcholinesterase inhibitory activity of Amaryllidaceae plants. congrès de l’AFERP à Besançon, France. du 15 au 17 juillet 2010.
5. Sakina Yagi, Anna El Tahchy, Nadine Azas, Dominique Laurain-Mattar. Antiplasmodial and cytotoxic activity of Pancratium tortuosum Herbert (Amaryllidaceae) bulbs. Annual Conference of Postgraduate Studies and Scientific Research, University of Khartoum.Sudan. 17-20 February 2012.

6. Gihan O.M. ELhassan, Sakina Yagi, Mohamed Ahmed Mesaik, Achyut Adhikari and Muhammad Iqbal Choudhary. Bioactive compounds from Grewia flavescens Juss. Annual Conference of Postgraduate Studies and Scientific Research, University of Khartoum.Sudan. 17-20 February 2012.
7. Sakina Yagi and Gihan O.M. ELhassan. Health benefitting components of three indigenous plants commonly used by households at rural areas in the Sudan. International Conference on Women in Science and Technology in the Arab Countries, Venue: Kuwait City, Kuwait. April 21-23, 2013.
8. Omer Mohamed Abdalla, M. Ahmed Mesaik, Rafat Ali Siddiqui, M. Amer, El-Ashry, Gihan Omer, and Sakina Yagi. An anthraquinone and an enamine thiocarbazate inhibited T-cell proliferation by down-regulating the phosphorylation of signaling proteins.14th Asian Symposium on Medicinal Plants, Spices and Other Natural Products. Karachi, Pakistan. December 9-12. 2013.