Media, Riona Ihsan. “STUDI PERANCANGAN COMBINATION TOOL AIR VENT NON-CYLINDER DENGAN METODE VDI 2222”. Jurnal Teknik Mesin (Journal Of Mechanical Engineering), vol. 6, no. 4, Feb. 2018, pp. 237-43, doi:10.22441/jtm.v6i4.2058.