Salman, Alaa D., et al. “EFFECT OF HIGH LEVEL OF PROTEIN INTAKE ON THE REPRODUCTIVE PERFORMANCE OF AWASSI EWES. ”. Diyala Agricultural Sciences Journal , vol. 5, no. 2, Dec. 2013, pp. 426-35, https://journal.djas.uodiyala.edu.iq/index.php/dasj/article/view/2832.