Haider, M. S., M. Bilal, H. Ahmed, M. Anwar, A. Sattar, and S. M. H. Andrabi1. 2017. "EFFECT OF CIDR WITH OR WITHOUT GnRH AND DOUBLE PGF2α BASED ESTRUS SYNCHRONIZATION PROTOCOLS ON ESTRUS RESPONSE AND PREGNANCY PER AI IN NON-DESCRIPT COWS OF THE PUNJAB." Journal of Animal and Plant Sciences 27 (4): 1108-1114.