Haris Nasution, Abdul, Muksin Rasyid Harahap, Suhardi Napid, and Muhammad Rafiq Yanhar. “Machinability Study of Cast Iron in Small and Medium Enterprise”. International Journal of Engineering & Technology 7, no. 3.14 (July 25, 2018): 445–448. Accessed November 22, 2024. https://sciencepubco.com/index.php/ijet/article/view/25781.