Setiawan, Fery, Ardi Sanjaya, and Julian Sahertian. “Sistem Penghitung Pelanggan Dengan Metode Viola-Jones”. Prosiding SEMNAS INOTEK (Seminar Nasional Inovasi Teknologi) 4, no. 2 (September 3, 2020): 41–44. Accessed April 25, 2024. https://proceeding.unpkediri.ac.id/index.php/inotek/article/view/118.