Shukla, S. N., Agarwal, S. K., Shanker, U., Varshey, V. P., & Majumdar, A. C. (2005). Ovarian function and restoration of fertility using insulin in acyclic dairy cattle. The Indian Journal of Animal Sciences, 75(10). https://epubs.icar.org.in/index.php/IJAnS/article/view/8276