Mangangkung, N. et al. 2023. Anti-Bacterial And Anti-Ultraviolet Activity Test Of Black Cucumber (Holothuria atra) Extract From Tongkaina Waters, Bunaken District, Manado City. Jurnal Ilmiah PLATAX. 11, 2 (Oct. 2023), 543–550. DOI:https://doi.org/10.35800/jip.v11i2.48018.