Halidu, A., Lalamentik, L. T. X. and Rembet, U. N. W. J. (2016) “Distribution of Coral Reefs Stone at the Reef Flat of South Coast Putus-Putus Island East Ratatotok, Ratatotok District Southeast Minahasa Regency”, Jurnal Ilmiah PLATAX, 4(1), pp. 19–30. doi: 10.35800/jip.4.1.2016.13229.