Hutagalung JB, Koto MS, Hutagalung H. The Effect of Supervision and Incentives on Employee Work Morale at the Class IV Sibolga Harbormaster and Port Authority Office. JEMA [Internet]. 2026 Jul. 12 [cited 2026 Jul. 15];3(02):159-64. Available from: https://jurnal.devitara.or.id/index.php/ekonomi/article/view/404