“PENGENDALIAN KUALITAS PRODUK ORAL HEALTH CARE (OHC) PADA PT AMTEK ENGINEERING BATAM”, comasiejournal, vol. 4, no. 5, hlm. 20–29, Jan 2021, Diakses: Okt 06, 2026. Tersedia pada: https://ejournal.upbatam.ac.id/index.php/comasiejournal/article/view/3469