Ali, Asmahan Azhari, et al. “Microbiological Safety of Raw Milk in Khartoum State, Sudan: 1-Khartoum and Omdurman Cities”. Pakistan Journal of Nutrition, vol. 9, no. 5, Apr. 2010, pp. 426–429, https://doi.org/10.3923/pjn.2010.426.429.