Mukhtar, A. A., N. A. A. Alfadil, M. S. Mohamed, H. N. Altayb, S. G. Elzaki, and M. S. Hassan. “Identification of Proteus Mirabilis on Banknotes Using 16s RRNA Gene in Khartoum State”. Sudan Journal of Medical Sciences (SJMS), Vol. 13, no. 3, Sept. 2018, pp. 175–186, doi:10.18502/sjms.v13i3.2955.