1. ACSAD, 1996. Annual Technical Report. Department of Studies of Animal Wealth, The Arab Centre for the Studies of Arid Zones and Dry Lands. ACSAD/AS/AR 24, Damascus, Syria.
2. Testis characters and sperm reserve of horned vs. Polled-Sired Awassi Yearling rams;Alkass;Zanco,1987
3. The post noted development of the testes and epididymis in the Awassi rams under Lebanese environment;Barr;Megon. Ser. Sci.,1969
4. Correlation of scortal circumference and some body measurements with testis weight in Pelibuey rams;Celis;Anim. Breed. Abstr.,1987
5. Constantinou, A., Mavrogenis, A.P., 1987. Environmental breed and heterosis effects on lamb mortality and weights of crossbreed sheep. In: Proceedings of ICAPAZ. Damascus, Syria, pp. 705–715.