Naeem, M., W. Ahmed, and S. Husain. “Evaluation of Surface Roughness and Hardness of PVD Coated AISI D2 Steel by Taguchi Analysis”. International Journal of Advanced Natural Sciences and Engineering Researches, vol. 8, no. 7, Aug. 2024, pp. 287-9, https://as-proceeding.com/index.php/ijanser/article/view/1999.