Mahmudi, Ama Muzni, and Teddy Mantoro. “User-Centric Waste Management Through Reward-Based Digital Systems”. Buletin Poltanesa 26, no. 1 (June 5, 2025). Accessed June 7, 2025. https://e-journal.politanisamarinda.ac.id/index.php/tanesa/article/view/3380.