Sahel, Djamel, Houari Ameur, and Mustapha Mellal. “Effect of Tube Shape on the Performance of a Fin and Tube Heat Exchanger”. Journal of Mechanical Engineering and Sciences 14, no. 2 (June 22, 2020): 6709 - 6718. Accessed January 19, 2021. https://journal.ump.edu.my/jmes/article/view/2764.