Singh, J P, T C Thakur, and R K Srivastava. “Laboratory Studies on Ammonia (Urea) Treatment of Baled Paddy Straw for Utilization As Livestock Feed”. Journal of Agricultural Engineering 43, no. 4 (December 5, 2006). Accessed June 30, 2026. https://epubs.icar.org.in/index.php/JAE/article/view/14331.