Elihasridas, Mardiati Zain, Yetti Marlida, and Andri. “Effect of the Level of Energy and Dietary Protein of Ammoniated Rice Straw on the Productivity of Male Simmental Cattle in a Tropical Area”. Pakistan Journal of Nutrition 18, no. 1 (December 15, 2018): 60–66. Accessed August 30, 2025. https://pjnonline.org/pjn/article/view/2671.