Tanjung, Nurul Akbar, and Sanwani Sanwani. “Face Recognition Using Webcam With K Nearest Neighbors Algorithm for Employee Presence”. The IJICS (International Journal of Informatics and Computer Science) 5, no. 3 (November 30, 2021): 353–362. Accessed October 27, 2025. https://ejurnal.stmik-budidarma.ac.id/index.php/ijics/article/view/3529.