Mega Sari, Rica, Restu Julia Sari, and Dara Surtina. 2022. “Characteristics Fluid Rumen From Ration With Ratio Rumen Degradable And Ungradable Protein Which Different In-Vitro”. Journal of Animal Nutrition and Production Science 1 (1):41-54. http://ojs.ummy.ac.id/index.php/janaps/article/view/223.