Mauritz H.M Sibarani, Brenhard Mangatur Tampubolon, and Junaidi Junaidi. “Blockchain-Based Digital Credentialing Systems for Seafarer Certification Management: Implementation Challenges in Indonesian Maritime Academies”. IJISIT: International Journal of Computer Science and Information Technology 2, no. 2 (December 30, 2025): 104–118. Accessed March 28, 2026. https://ojs.literasisains.id/index.php/ijisit/article/view/49.