ZAIED, A. A. ., . H. J. . IRVIN, H. A. . GARVERICK, A. M. . SHAREHA, and A. . EL-MAHI. “Effect of Days Postpartum and Endogenous Plasma Progesterone Concentrations on Estradiol Benzoate Induced LH Release in Dairy Cattle”. The Libyan Journal of Agriculture, vol. 11, no. 1, Apr. 2023, http://uot.edu.ly/journals/index.php/ljagric/article/view/469.