Suherman, Suherman, Abd Syakura, Amirsyam Nasution, S. Mizhar, O. Hermawan, & A. Handoko. " Influence of Additional Sr and TiB on Aluminium Al-Si-Cu-Mg Alloys for Produced Prototype Cylinder Head Motorcycle." Proceeding of Ocean, Mechanical and Aerospace -Science and Engineering- [Online], 5.1 (2018): 79-83. Web. 20 Aug. 2024