“Effect of heparin on the capacitation of frozen – Thawed bull sperm used in the In-vitro fertilization of oocytes matured In-vitro”, IJPLS, vol. 4, no. 2, pp. 2368–2370, Feb. 2013, Accessed: Dec. 17, 2025. [Online]. Available: http://ijplsjournal.com/index.php/ijpls/article/view/712