Design and Build an Android-Based Student Attendance System Using LBS and Qrcode at IAIN Salatiga. SMART : Jurnal Teknologi Informasi dan Komputer , [S. l.], v. 1, n. 2, p. 37–48, 2022. DOI: 10.58222/c14ex554. Disponível em: https://journal.bengkuluinstitute.com/index.php/smart/article/view/816. Acesso em: 3 jul. 2026.