Riyuska, A., N. W. K. Karja, and A. Setiadi. 2019. “Efficacy of Leptin Supplementation on Nuclear Maturation and Fertilization Rate of Sheep Oocytes In Vitro”. Tropical Animal Science Journal 42 (1): 1-5. https://doi.org/10.5398/tasj.2019.42.1.1.