Ngowi, H.A., G.K. Mbassa, L.D. Shallua, O.C. Mushi, and S.B. Ndibalema. “Serum Protein Concentration in the African Free-Ranging Chicken of Different Ages and Sexes”. Tanzania Veterinary Journal 18, no. 2 (June 30, 1998): 110–116. Accessed August 1, 2026. https://tvj2.sua.ac.tz/vet2/index.php/TVJ/article/view/449.