Musa, Weny J.A, et al. “Triterpenoid Compound from Metanol Extract of Mangrove Leaves (Sonneratia Alba) and Anti-Cholesterol Activity Test”. Jurnal Pendidikan Kimia, vol. 11, no. 1, Apr. 2019, pp. 18-23, doi:10.24114/jpkim.v11i1.13124.