Izharsyah, Jehan Ridho, Arifin Saleh, Abrar Adhani, and Ananda Mahardika. “Implementation and Challenges : "Digital Payment System Port Transportation in Developed Countries in Southeast Asia’’”. KnE Social Sciences 8, no. 5 (March 6, 2023): 66–80. Accessed April 26, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/12989.