Hamad, Walid Sayed Mohamed; Supervisor, - Ahmed Mohamed Abdallah Hamdi; Co-Supervisor, - Manahil Said Ahmed(Sudan University of Science and Technology, 2017-02-10)
Sultan, Maysoon Abdel Moneim Mustafa Ali; Supervisor, Mohammed Hassan Mudawi; Co-supervisor, Afraa Hashim Abdellatif(Sudan University of Science and Technology, 2016-08-10)