P. E. PRASAD and M. R. REDDY, “In vitro evaluation of optimum conditions for urea-ammonia treatment of sorghum straw”, Indian J of Anim Sci, vol. 67, no. 8, Nov. 2013, Accessed: Oct. 24, 2025. [Online]. Available: https://epubs.icar.org.in/index.php/IJAnS/article/view/34925