Yabrir, B. ., A. H. . (ex. Akam), and A. . Mati. “Factors Affecting Milk Composition of Algerian Ewe Reared in Central Steppe Area”. Scientific Journal of Animal Science, vol. 2, no. 8, Aug. 2013, pp. 215-21, http://sjournals.com/index.php/sjas/article/view/1062.