Khairina, Nadia Luthfiah, and Muhammad Dedi Irawan. “Implementatton of QR Code On Employee Attendance Applications Using Bootstrap”. Journal of Computer Science and Informatics Engineering 1, no. 3 (July 29, 2022): 133–145. Accessed May 3, 2024. https://journal.aira.or.id/index.php/cosie/article/view/103.