Awad, A. M., khalid A. Sukkar, and D. M. Jaed. “The Effecting of Various Parameters on the Thermophysical and Rheological Properties of SiO2 Nano-Lubricating Oil in Petroleum Refineries”. Journal of Petroleum Research and Studies, vol. 12, no. 4, Dec. 2022, pp. 68-91, doi:10.52716/jprs.v12i4.575.