MAHMOUD, MONA OMER ABDELAZIZ; Supervisor, - Nafie A. Almuslet; Co - Supervisor, - Shaza M. Yousif(Sudan University of Science and Technology, 2011-04-08)
Obeid, Nagat Babiker Ahmed; Supervisor, - Faiz M.B. El Shafi a; Co - Supervisor, - Shaza M. Yousif(Sudan University of Science and Technology, 2014-06-03)