Alazemi, Saud F. E. M. D., Irfan Hilmy, and Erry Y. T. Adesta. 2018. “Indentation Mechanism in Rotary Hammer Forging Process: Analytical and Numerical Approach”. International Journal of Engineering Materials and Manufacture 3 (4):190-99. https://doi.org/10.26776/ijemm.03.04.2018.03.