Mariani, N. P., Mahardika, I. G., Putra, S., & Partama, I. B. G. (2015). Penentuan Keseimbangan Protein dan Energi Ransum Sapi Bali Jantan. Jurnal Peternakan Indonesia (Indonesian Journal of Animal Science), 17(1), 46–53. https://doi.org/10.25077/jpi.17.1.46-53.2015