khan, F., and V. Yunus. “Experimental Study For Heat Transfer Enhancement of a Radiator Using Twisted Inserts With Different Coolants”. Journal of Advanced Research in Mechanical Engineering and Technology, vol. 5, no. 1&2, Jan. 2019, pp. 25-29, https://adrjournalshouse.com/index.php/mechanical-engg-technology/article/view/271.