Hadi S, Zainuri AM, Nurhadi, Nurchajat, Purwoko. Rancang Bangun Portal Penggerak Roda Gigi di Malang. JPKM [Internet]. 2025 Dec. 10 [cited 2026 Apr. 2];15(2):379-87. Available from: https://ojs.uninus.ac.id/JPKM/article/view/3826