Faki, Aisha E., E.A.E. Obeid, Hagir I.M. Osman, and A.E Amin. 2015. “Ostrich (Struthio Camelus ) Egg Embryonic Death During Artificial Incubation”. International Journal of Applied Sciences and Biotechnology 3 (4):566-78. https://doi.org/10.3126/ijasbt.v3i4.13523.