“Semen Processability and Freezability of Saanen Fitb Bucks under the Climatic Conditions of the Sudan”. The Sudan Journal Of Animal Production المجلة السودانية للانتاج الحيواني, vol. 6, no. 6, June 1993, p. 6, https://sud-jap.sd/Journal/index.php/sjap/article/view/99.