U. Ibrahim, A. Mbaya, Y. Geidam, and A. Geidam, “Endoparasites and Associated Worm Burden of Captive and Free-Living Ostriches (Struthio camelus) in the Semi-Arid Region of North Eastern Nigeria”, Int. J. Poult. Sci., vol. 5, no. 12, pp. 1128–1132, Nov. 2006, doi: 10.3923/ijps.2006.1128.1132.