Kalalinggi, Septaria Yolan, et al. “Phytochemical Screening N-Hexane Extract of Sponge Xestospongia Testudinaria from Spermonde Archipelago”. Journal of Biotropical Research and Nature Technology , vol. 1, no. 2, Apr. 2023, pp. 86-91, doi:10.52850/borneo.v1i2.8992.