Purbomartono, C. et al. 2023. Effectiveness of Herbal Diet Nigella sativa and Gracilaria verrucosa Against Non-specific Immunity of Tilapia (Oreochromis niloticus). Sainteks. 20, 1 (Apr. 2023), 9–16. DOI:https://doi.org/10.30595/sainteks.v20i1.16410.