Azmi, W. H., S. N. M. Zainon, K. A. Hamid, and R. Mamat. “A Review on Thermo-Physical Properties and Heat Transfer Applications of Single and Hybrid Metal Oxide Nanofluids”. Journal of Mechanical Engineering and Sciences, vol. 13, no. 2, June 2019, pp. 5182-11, doi:10.15282/jmes.13.2.2019.28.0425.