Banlue, S. ., and K. I. Inthasaeng. “The Efficiency of a Class Attendance Monitoring System With Face Recognition by Using LBP Technique”. Journal of Roi Et Rajabhat University, vol. 14, no. 1, Apr. 2020, pp. 147-58, https://so03.tci-thaijo.org/index.php/reru/article/view/209353.