Hidayati, S. ., I. . Abdulhak, D. . Wahyudin, and R. . Rusman. “The Influence of the Maritime Learning Activities on the Development of Student Competencies: Case Study”. International Journal of Education and Practice, vol. 8, no. 3, July 2020, pp. 379-93, doi:10.18488/journal.61.2020.83.379.393.