Sisay Fikru. “(Phaseolus Vulgaris) by Replacing Soybean Meal on Egg Fertility and Qualities of Chicks of White Leghorn Hens”. Global Journal of Medical Research, vol. 15, no. G2, May 2015, pp. 9-16, https://medicalresearchjournal.org/index.php/GJMR/article/view/996.