QR code based module development to improve students’ learning interest in quadratifical equations in class ix mts nurul huda bercak asri cermee bondowoso: pengembangan modul berbasis qr code. JM [Internet]. 2025 Apr. 25 [cited 2026 Jun. 30];8(2). Available from: https://ejurnal.mercubuana-yogya.ac.id/index.php/mercumatika/article/view/4272