“USABILITY AND USEFULNESS FOR ONLINE SINGLE SUBMISSION SYSTEM IN INVESTMENT AND ONE-STOP INTEGRATED SERVICE OFFICE, SAMARINDA CITY”. Journal of Information Technology and Its Utilization 4, no. 1 (June 30, 2021): 14–21. Accessed April 19, 2025. //jkd.komdigi.go.id/index.php/jitu/article/view/3892.