Mohamad, A. J., S. N. Masmera, A.A.M.Redhwan, O.W.Zulkarnain, and Kharudin Ali. “Tribology Investigation of High Speed Steel onto Aluminium Alloy AL319 Applying Nano-Coolant”. International Journal of Synergy in Engineering and Technology, Vol. 6, no. 1, Apr. 2025, pp. 73 -85, https://tatiuc.edu.my/ijset/index.php/ijset/article/view/245.