Purwiyanto, Didik. “Analysis of the Motivation of Seafarers Graduates to Become Lectures at Program Diploma Pelayaran at Universitas Hang Tuah Surabaya”. JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN 11, no. 1 (September 1, 2020): 1–13. Accessed December 20, 2025. https://pdp-journal.hangtuah.ac.id/index.php/jurnal/article/view/59.