W. . Eldomany, A.-K. . Abdel-Khalek, W. . Khalil, A. Yousif, B. . El-Saidy, and M. Hassan, “Influence of Long and Short-term Progesterone Administration on Estrous Synchronization and Reproductive Performance in Ewes During May Season ”, JAVR, vol. 13, no. 1, pp. 88-93, Jan. 2023.