Nagara, R.L.K. et al. 2019. Massa Protein dan Kalsium Daging Ayam Broiler Akibat Penambahan Sinbiotik dalam Ransum. Jurnal Peternakan Indonesia (Indonesian Journal of Animal Science). 21, 3 (Oct. 2019), 198–204. DOI:https://doi.org/10.25077/jpi.21.3.198-204.2019.