Napitupulu, Robert, Licia Christianty, Harpois Sitinjak, Masdani Masdani, Irwan Irwan, and Better Swengky. “Implementasi Sistem Informasi Perawatan Preventif Berbasis Website Optimalisasi Perawatan Mesin Frais Fehlmann Picomax 20 Di Jurusan Rekayasa Mesin”. Manutech : Jurnal Teknologi Manufaktur 18, no. 01 (June 30, 2026): 179–187. Accessed October 4, 2026. https://ejournal.polman-babel.ac.id/index.php/manutech/article/view/785.