Sukarjo, Heribertus, and Adi Surahman. “Pengaruh Korosi Terhadap Kekuatan Tarik Macaroni Tubing P110 1.900" X 4.19 Lbs Ft”. Jurnal Engine: Energi, Manufaktur, dan Material 1, no. 1 (May 31, 2017): 1–10. Accessed November 21, 2024. https://ejournal.up45.ac.id/index.php/Jurnal_ENGINE/article/view/223.