Adetunji, V.O. and Arigbede, M.I. 2011. Occurrence of E. coli O157:H7 and Listeria monocytogenes and Identification of Hazard Analysis Critical Control Points (HACCPs) in Production Operations of a Typical Tropic Cheese ’Wara’ and Yoghurt. Pakistan Journal of Nutrition. 10, 8 (Jul. 2011), 796–804. DOI:https://doi.org/10.3923/pjn.2011.796.804.