Cupu, Dedi Rosa Putra, Efi Afrizala, and Ibnu Kalduma , trans. “Perancangan Alat Uji Roda Gigi Menggunakan Metode VDI 2221”. Proceeding SNTTM BKS-TM Indonesia 21, no. 1 (May 27, 2024): 1–9. Accessed May 3, 2025. https://snttm.bkstm.org/index.php/SNTTM/article/view/3.