AHMED, N, et al. “INITIATING OVSYNCH ON DAY 6 POST ESTRUS ONSET ± POST AI EARLY LUTEAL PHASE GnRH TREATMENT TO IMPROVE OVARIAN AND FERTILITY RESPONSE IN REPEAT BREEDING CROSSBRED CATTLE”. The Indian Journal of Animal Reproduction, vol. 37, no. 1, Dec. 2022, pp. 5-7, https://acspublisher.com/journals/index.php/ijar/article/view/3491.