Purbarani, S. A., et al. “Dahlia Inulin and Lactobacillus Sp. In Step Down Protein Diet on Villi Development and Growth of KUB Chickens”. Tropical Animal Science Journal, vol. 42, no. 1, Mar. 2019, pp. 19-24, https://doi.org/10.5398/tasj.2019.42.1.19.