Kumbhar, Umesh Balkrishna, et al. “Enhancement of Conception Rate through Luteotropic Hormones and Its Effect on Progesterone Concentration in Non-Infectious Repeat Breeding Murrah Buffaloes”. Buffalo Bulletin, vol. 39, no. 1, Mar. 2020, pp. 75-84, https://kuojs.lib.ku.ac.th/index.php/BufBu/article/view/1683.