Pratama, Yuda, Ilmiyati Rahmy Jasril, Thamrin, and Delsina Faiza. “Development of an Attendance Information System Using ESP8266-Based Technology”. International Journal of Emerging Technology and Engineering Education 1, no. 1 (October 7, 2024): 20–25. Accessed April 3, 2025. https://ijeteed.ppj.unp.ac.id/index.php/ijeteed/article/view/5.