KETAN N. MAHAJAN; NAGARAJ V. DHARWADKAR. CLASSROOM ATTENDANCE SYSTEM USING SURVEILLANCE CAMERA. International Journal of Innovations in Engineering Research and Technology, Maharashatra, India, p. 1–4, 2021. Disponível em: https://repo.ijiert.org/index.php/ijiert/article/view/1018. Acesso em: 1 aug. 2025.