2020. Feeding combination of Lactobacillus casei and extracts of dahlia tuber or garlic on intestinal bacteria, nutrients digestibility and performance of broiler chickens. Jurnal Ilmu-Ilmu Peternakan. 30, 2 (Aug. 2020), 158–166. DOI:https://doi.org/10.21776/ub.jiip.2020.030.02.08.