Nasrin, S, MR Amin, and MK Alam. “Evaluation Of Semen And Non-Return Rate Of Bulls In Artificial Insemination (AI) Center”. Bangladesh Journal of Animal Science 37, no. 2 (February 19, 2012): 1–7. Accessed December 22, 2024. https://banglajol.info/index.php/BJAS/article/view/9875.