Akhtar, S., F. Hossain, M. Siddiqui, M. Alam, and M. Islam. “Morphology and Morphometrical Studies on Semi Lunar Heart Valves of Indigenous Cattle (<i>Bos indicus</I>)”. International Journal of Natural Sciences, vol. 1, no. 1, Sept. 2011, pp. 7-11, doi:10.3329/ijns.v1i1.8608.