NamrataD. Ranaware, et al. “AReview OnComparison BetweenShell And Tube Heat Exchanger And Helical Coil Heat Exchanger”. International Journal of Innovations in Engineering Research and Technology, vol. 2, no. 2, Mar. 2021, pp. 1-9, https://repo.ijiert.org/index.php/ijiert/article/view/298.