Eneji, C. et al. 2007. Effect of Refrigeration and Frozen Storage on the Shelf-life of Beef Purchased from Local Markets and Abattoir in Calabar Metropolis-Nigeria. Pakistan Journal of Nutrition. 6, 6 (Oct. 2007), 576–581. DOI:https://doi.org/10.3923/pjn.2007.576.581.