Supangat. 2019. “The Managerial Capability and the Function of the Leadership of Director on Increasing the lecturer’s Competency in Program Diploma Pelayaran of Universitas Hang Tuah Surabaya”. JURNAL APLIKASI PELAYARAN DAN KEPELABUHANAN 9 (2):130-42. https://doi.org/10.30649/japk.v9i2.31.