Oktaviani, A. et al. 2025. Evaluation of food digestibility in Nile tilapia fish Oreochromis niloticus given NSP enzymes and organic chromiium. Jurnal Akuakultur Indonesia. 24, 1 (Feb. 2025), 136–147. DOI:https://doi.org/10.19027/jai.24.1.136-147.