Bahtiar, Ismail, and Heri Sudarmaji, S.T, M.T. “PERANCANGAN DAN PEMBUATAN MESIN 3D BENDING MANUAL”. Technologic 8, no. 1 (August 10, 2018). Accessed November 23, 2024. https://technologic.polytechnic.astra.ac.id/index.php/firstjournal/article/view/225.