Alias, A.A., H. Kinoshita, Y. Nishina, and M. Fujii. 2022. “Dependence of PH Level on Tribological Effect of Graphene Oxide As an Additive in Water Lubrication”. International Journal of Automotive and Mechanical Engineering 13 (1):3150-56. https://doi.org/10.15282/ijame.13.1.2016.2.0262.