A. Zubaidah, K. R. Faidah, and S. Samsundari, “Effectiveness of Strychnos ligustrina Bl. Extract as Feed Supplementation to Increase Immune System of Nile Tilapia (Oreochromis niloticus) wich againts Streptococcus agalactiae”, IJOTA, vol. 1, no. 1, pp. 1–8, Aug. 2018.