Syafwan, Noferdiman, ZubaidaS., PasaribuT. M., and Adrizal. 2021. “Estimation of Energy and Protein Requirements of Arabic Hens During Rearing Period by Free Choice Feeding”. Tropical Animal Science Journal 44 (4), 462-77. https://doi.org/10.5398/tasj.2021.44.4.462.