Nasprianto, ., Mantiri, D. M. and Gerung, G. S. (2019) “Metal Concentration In Water, Sediment, and Green Alga Halimeda opuntia (Linnaeus) J.V. Lamouroux from Totok Bay and Blongko Waters, North Sulawesi”, Jurnal Ilmiah Platax, 7(1), pp. 233–242. doi: 10.35800/jip.7.1.2019.23143.