Allah, Ibrahim Abd-Elwahab Hamdna; Abd-Elhadi, Mohammed Ashraf; El-Amin, Mohammed Ibrahim; Elmobark, Samer Osman; Supervisor -, Sami Hassan Omer Salih(Sudan University of Science and Technology, 2015-09-10)
Ebaied, Mogahid Abd El-motalab Khalifa; Salih, Mohamed Ali Elhag Zubair; Khalid, Mohammed Mahmoud Osman; Mohammed, Omar Ibrahim Abd-allah; Supervisor -, Sami Hassan Omer Salih(Sudan University of Science and Technology, 2015-09-10)