@article{ijtech-1274, title={Surface Hardening of Tool Steel by Plasma Arc with Multiple Passes}, author={Mohd Idris Shah Ismail,Zahari Taha}, volume={5}, number={1}, year={2014}, month={Jan}, pages={79-87}, DOI={https://doi.org/10.14716/ijtech.v5i1.156}, journal={International Journal of Technology}, ISSN={2087-2100}}