Azwar, Fajar Daya Winasis, Munasik Munasik, and Caribu Hadi Prayitno. 2023. “Efficiency of Milk and Methane Production of Dairy Goat: A Study of the Correlation Between Nutrient Use and Lactation Performance”. Revista Electronica De Veterinaria 24 (1), 42 - 53. https://www.veterinaria.org/index.php/REDVET/article/view/299.