Zaidi, N.- e-. S.; Anwar, M.; Cheema, A. U.; Afzal, M.; Ghumman, A. Effect of Duration of Biostimulation on Oestrus Expression, Resumption of Ovarian Activity, Conception Rate and Peripheral Cortisol Level in Postpartum Anoestrus Nili-Ravi Buffalo During Low Breeding Season. Buffalo Bull. 2020, 39, 453-461.