GUMAY, A.; HERNINGSIH, S. W.; VIAMITA, E. S. Validity and Reliability of the Maritime English Seafarer Proficiency Exam. Jurnal Ekonomi, [S. l.], v. 13, n. 02, p. 117–127, 2024. Disponível em: https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/4357. Acesso em: 24 jun. 2026.