Abdalla A (2015) On the Scientific writing, Omdurman Islamic University, Khartoum, Sudan, 3rd Nov 2015 (oral presentation).
Abdalla A (2015) Guides to write your thesis, University of Khartoum, Khartoum, Sudan, 28th Oct 2015 (oral presentation).
Abdalla A (2015) GPS fundamentals and applications. Darfur development workshop, Future University, Khartoum, Sudan, 29th Aug 2015 (oral presentation).
Abdalla A (2015) Modern Applications of Geomatics. Surveying Engineering Students Association, University of Khartoum, Khartoum, Sudan, 3rd June 2015 (oral presentation).
Abdalla A (2015) Space Technologies (Anticipated uses). Sudanese Geoinformatics Society (SGS), First Scientific meeting, Future University, Khartoum, Sudan, 31st January 2015 (oral presentation).
Abdalla A, Tenzer R , (2012) New experimental regional model of New Zealand (OTG12), Surveying Research Workshop, School of Surveying, Otago University, Dunedin, New Zealand, 2nd of August, 2012 (oral presentation).
Rýznarová L ,Tenzer R , Abdalla A, Wiart A (2012) Regional validation of GRACE monthly solutions using oceanographic datasets, Surveying Research Workshop, School of Surveying, Otago University, Dunedin, New Zealand, 2nd of August, 2012 (oral presentation).
Abdalla A, (2011) Accuracy analysis of state-of-the-art global gravity models using GPS-levelling and gravity data – a New Zealand case study, Surveying research seminar series, School of Surveying, Otago University, Dunedin, New Zealand, 18th of August, 2011 (oral presentation).
Tenzer R, Gan L, Čunderlík R, Abdalla A (2011) On some problems with the realization of the World Height System in New Zealand. Institute of Geodesy and Photogrammetry, Malaysia University of Technology, Skudai, Johor, Malaysia, 1st of April 2011 (invited oral presentation).
Abdalla A, Tenzer R (2010) A compilation of the new geoid model in New Zealand using the KTH method. Active Earth Processes Workshop 2010, Otago University, Dunedin, 18 November 2010 (oral presentation).
Abdalla A, Tenzer R (2010) First results of a new gravimetric geoid model for New Zealand. Surveying research seminar series, School of Surveying, Otago University, Dunedin, New Zealand, 12th of February, 2010 (oral presentation).
Tenzer R, Abdalla A (2010) Comparison of the new gravimetric geoid model KTH-NZ2010.v1 with existing quasigeoid models for New Zealand. Surveying research seminar series, School of Surveying, Otago University, Dunedin, New Zealand, 12th of February, 2010 (oral presentation)
