. S, . S, Setyawan PD, Tira HS, Mahadika MN. The Impact of Copper on the Mechanical Properties of Cast Motorcycle Cylinder Blocks. JOIT [Internet]. 2024 Aug. 7 [cited 2024 Dec. 22];2024. Available from: https://iuojs.intimal.edu.my/index.php/joit/article/view/516