Suryani, N. N., I. W. Suama, I. G. Mahardika, and N.P. Sarini. 2020. “Rumen Fermentation and Microbial Protein Synthesis of Bali Cattle Heifers (Bos Sondaicus ) Fed Ration Containing Different Energy Protein Level”. Jurnal Sain Peternakan Indonesia 15 (2):187-94. https://ejournal.unib.ac.id/jspi/article/view/11148.