zakhroni, zidan, and Alviani hesthi permata ningtyas. 2025. “The ANALISIS EFEKTIVITAS KINERJA MESIN GAS CUTTING OTOMATIS Di PT. ANEKA JASA TEKNIK GRESIK ”. ENIGMA: Engineering in Green Machinery 2 (2):136-41. https://doi.org/10.30587/enigma.v2i2.10929.