“PERANCANGAN JIG MAIN STEAM DI PT. TOMOE VALVE BATAM”, comasiejournal, vol. 3, no. 3, hlm. 57–63, Nov 2020, Diakses: Okt 06, 2026. Tersedia pada: https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/2162