R. Biswal, S., and S. T. Nayak. 2018. “Impact of Tempering Factors on Mechanical Properties of Ck55 Steel (0.55wt%C - 0.75wt%Mn)”. International Journal of Engineering & Technology 7 (4.39): 238-41. https://doi.org/10.14419/ijet.v7i4.39.23939.