K. SINGH and V. KUMAR, “Comparison of Sahiwal and different grades of Holsfein Friesian x Sahiwal crossbreds for feed conversion and nutritional efficiency for growth”, Indian J of Anim Sci, vol. 67, no. 12, Nov. 2013, Accessed: Oct. 24, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/35199