Diyanah A, Chairunnisa. QR CODE BASED SMART CARD INNOVATION FOR INDEPENDENT MATHEMATICS TRAINING AT SDN 5 KEDATON, BANDAR LAMPUNG CITY. Innovate [Internet]. 29 April 2025 [dikutip 29 Oktober 2025];1(1):15-27. Tersedia pada: https://journal.jkrisetmetrolampung.web.id/index.php/innovate/article/view/41