M. D. Manurung, R. A. Tumbol, H. D. Pangkey, D. A. Sumilat, and R. E. P. Mangindaan, “The use of Sponge Crude Extract to Increase Growth and Immune Response of Nile Tilapia Oreochromis niloticus”, JIP, vol. 7, no. 1, pp. 256–265, Mar. 2019.