Mohamad Ramlan, Mohamad Farid, and Lilywati Bakar. “Fingerprint Doorlock and Home Security System by Using Arduino and IOT ”. Progress in Engineering Application and Technology 2, no. 1 (June 22, 2021): 549–557. Accessed May 1, 2024. https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/681.