DR TIWARI, Dr saurabh tiwari. “Behavioural Pattern As Indicator of Different Stages of Estrus in Sahiwal Cows”. Indian Journal of Animal Production and Management 40, no. 1 (May 21, 2024): 18–22. Accessed October 28, 2025. https://epubs.icar.org.in/index.php/IJAPM/article/view/147453.