SUKOJO, . M. .; RINJANI, . A. . ANALISA VARIASI HARMONIK PASANG SURUT DI PERAIRAN SURABAYA AKIBAT FENOMENA EL-NINO . GEOID, [S. l.], v. 13, n. 1, p. 77–84, 2017. DOI: 10.12962/geoid.v13i1.1553. Disponível em: https://journal.its.ac.id/index.php/geoid/article/view/1553. Acesso em: 6 dec. 2025.