Karki, B., R. Raut, K. P. Sankhi, U. Mandal, and G. Gautam. “Fertility Improvement by Ovsynch Protocol in Repeat Breeder Cattle of Kathmandu Valley”. International Journal of Applied Sciences and Biotechnology, Vol. 6, no. 3, Oct. 2018, pp. 261-4, doi:10.3126/ijasbt.v6i3.21183.