Mohamed. M. Salem. “The Effect of Cryogenic Treatment on Wear Resistance and Hardness of Tool Steel AISI ‘D2’”. The International Journal of Engineering & Information Technology (IJEIT) 4, no. 1 (June 26, 2024). Accessed December 22, 2024. http://ijeit.misuratau.edu.ly/index.php/ijeit/article/view/393.