DITAS. F., BUDIARTIS., and LESTARIY. “Sponge-Associated Actinobacteria: Morphological Character and Antibacterial Activity Against Pathogenic Bacteria”. Jurnal Sumberdaya Hayati, Vol. 3, no. 1, Aug. 2017, pp. 21-26, doi:10.29244/jsdh.3.1.21-26.