Rampengan RM. Amplitude of the Tidal Harmonic Constituents M2, S2, K1, and O1 in Waters Around the City of Bitung in North Sulawesi. JIP [Internet]. 2013 Aug. 21 [cited 2024 Nov. 22];1(3):118-24. Available from: https://ejournal.unsrat.ac.id/v3/index.php/platax/article/view/2569