Ekenyem, B.U., and F.N. Madubuike. “Haematology and Serum Biochemistry of Grower Pigs Fed Varying Levels of Ipomoea Asarifolia Leaf Meal”. Pakistan Journal of Nutrition, vol. 6, no. 6, Oct. 2007, pp. 603–606, https://doi.org/10.3923/pjn.2007.603.606.