O. E. OTHMAN, H. A. A. EL-KADER, A. H. A. EL-RAHIM, O. M. A. EL-MONEIM, and S. S. ALAM, “Genetic characterization of three fertility genes in Egyptian sheep and goat breeds”, Indian J of Anim Sci, vol. 88, no. 2, pp. 200–205, May 2018, doi: 10.56093/ijans.v88i2.79336.