“Thermo-Fluidic Modelling of a Heat Exchanger Tube With Conical Shaped Insert Having Protrusion and Dimple Roughness”. Aptisi Transactions on Technopreneurship (ATT) 3, no. 2 (September 8, 2021): 127–143. Accessed August 15, 2026. https://att.aptisi.or.id/index.php/att/article/view/200.