IMPLEMENTATION OF QR CODE TECHNOLOGY AND A SIMPLE MOBILE APPLICATION FOR DIGITALIZING ATTENDANCE AND EARLY DETECTION OF TODDLER NUTRITIONAL STATUS AT POSYANDU. pepadu [Internet]. 2025 Sep. 30 [cited 2025 Oct. 16];6(3):361-7. Available from: https://jurnal.unram.ac.id/index.php/pepadu/article/view/7839