Yulianto, Andri. “THE EFFECT OF SELF-EFFICACY OF SHIPPING POLYTECHNIC EDUCATION PERSONNEL IN IMPROVING PERFORMANCE”. Jurnal Ilmiah Manajemen, Ekonomi, & Akuntansi (MEA) 8, no. 3 (December 11, 2024): 2408-2421. Accessed August 21, 2025. https://www.journal.stiemb.ac.id/index.php/mea/article/view/4771.