Abdulridha, L.A. (2019) “Impact of Nano-Gel of titanium dioxide Additive on Base Oil Properties Produced in Iraqi Refineries”, Iraqi Journal of Science, pp. 75–83. Available at: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/687 (Accessed: 3 January 2026).