Sumpena, Sumpena, and Wardoyo Wardoyo. “Pengaruh Variasi Temperatur Hardening Dan Tempering Paduan AlMgSi-Fe12% Hasil Pengecoran Terhadap Kekerasan”. Jurnal Engine: Energi, Manufaktur, dan Material 2, no. 1 (May 19, 2018): 26–32. Accessed December 4, 2024. https://ejournal.up45.ac.id/index.php/Jurnal_ENGINE/article/view/357.