Seng Keau C, Kim On C, Ahmad Hijazi MH, Mahinderjit Singh M. Smart-Hadir – Mobile Based Attendance Management System. Int. J. Interact. Mob. Technol. [Internet]. 2021 Jul. 28 [cited 2024 May 5];15(14):pp. 4-16. Available from: https://online-journals.org/index.php/i-jim/article/view/22677