Sarawan, Kamthorn, Apichai Sarnthong, Pornsiri Khumla, and Nipa Nasinprom. “Improvement of Time Attendance Online System: Case Study in the University”. Journal of Advanced Development in Engineering and Science 11, no. 30 (August 28, 2023): 16–31. Accessed March 1, 2024. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/949.