STUDENT ATTENDANCE MONITORING SYSTEM USING QR CODES AND SMS NOTIFICATIONS AT HORACIO DELA COSTA ELEMENTARY SCHOOL. AASgBCPJMRA [Internet]. 2026 Jan. 13 [cited 2026 Mar. 10];7(1). Available from: https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/15939