RELEVANSI INCOME OVER FEED COST DAN EFISIENSI PENGGUNAAN NUTRIENT PETERNAKAN SAPI PERAH. STAP [Internet]. 2022 Jun. 29 [cited 2025 Oct. 29];9:419-25. Available from: https://jnp.fapet.unsoed.ac.id/index.php/psv/article/view/868