Vettical, Binoy S. “In Vitro Fertilizability of Oocytes Using Fresh, Frozen and Epididymal Spermatozoa from Crossbred Bulls in the Tropics”. International Journal of Applied Sciences and Biotechnology 4, no. 2 (June 27, 2016): 166–171. Accessed December 27, 2024. https://nepjol.info./index.php/IJASBT/article/view/14265.