abdullah, abdulrahman mohamed; dafa allah, muaaz ali alhaj; alshoubli, mustafa ali mustafa; Supervisor-, A. A. A. Abuelnuor(Sudan University of Science and Technology, 2017-10-01)
Mohammed, Abdrhman Omer Ibrahim; Suleman, Awab Hassan Khalifa; Osman, Omer Ahmed Eltayeb Sirelkhatim; Supervisor-, A. A. A. Abuelnuor(Sudan University of Science and Technology, 2017-10-01)