Haque, Ainul, Kutubuddin Ahmed, Dhireswar Kalita, Shantanu Tamuly, and Dibyajyoti Talukdar. 2019. “In Vitro Capacitation of Boar Spermatozoa: Role of Heparin”. International Journal of Livestock Research 9 (3). India:112-18. https://doi.org/10.5455/ijlr.20180720060946.