“Rheological and Thermal Properties of Lubricating Oil Enhanced by the Effect of CuO and TiO2 Nano-Additives”. Al-Khwarizmi Engineering Journal 15, no. 2 (May 15, 2019): 24–33. Accessed November 22, 2024. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/495.