Musa, Mohammed Musa Mustafa; Supervisor, -Ikhlas Abdulaziz Hassan Mohamed; Co-Supervisor, -Abdurahman Mohamed Elnour(Sudan University of Science and Technology, 2019-03-31)
Elbashier, Mona Elhaj; Supervisor, -Mohamed Elfadil Mohamed Gar-elnabi; Co-Supervisor, -Caroline Edward Ayad(Sudan University of Science and Technology, 2017-08-23)