H. KUMAR, N. BHOOSHAN, M. K. PATRA, and M. C. YADAV, “Treatment with progestagen and PMSG to prevent prolonged anestrus in buffaloes”, Indian J of Anim Sci, vol. 80, no. 7, pp. 33–35, July 2010, doi: 10.56093/ijans.v80i7.307.