ISHTIAQ, MUHAMMAD, F. Ahmed, Bilal Saleem, L. Ali, A. Inam, and T. A. Tabish. “Effect of Post Heat-Treatment on Hardness and Case Depth of 17NiCrMo6-4 Gear Steel After Liquid Carburizing”. Journal of the Pakistan Institute of Chemical Engineers 42, no. 2 (November 11, 2014): 85–90. Accessed March 28, 2024. http://piche.org.pk/journal/index.php/jpiche/article/view/176.