Faturachman, Danny, and Karina A. Sulaeman. “Analysis of Sea Border Crossing Transportation Between Three Countries in Sumatera Island, Case Study: Tanjung Balai Karimun Port – Harbour Front Port, Singapore and Tanjung Balai Karimun Port – Kukup and Puteri Ports, Malaysia”. International Journal of Advanced Engineering Research and Science 8, no. 5 (May 17, 2021). Accessed July 22, 2024. https://journal-repository.com/index.php/ijaers/article/view/3577.