Sugianto, Sugianto, Mohammad Badaruddin, Lusmeilia Afriani, Dikpride Despa, and Ratna Widyawati. “Analisis Perambatan Retak Fatigue Pada Baja AISI 4140 Dengan Perlakuan Multi-Austempering”. Jurnal Profesi Insinyur Universitas Lampung 6, no. 1 (June 24, 2025). Accessed June 27, 2025. https://jpi.eng.unila.ac.id/index.php/ojs/article/view/166.