Sayid Bahri Sriwijaya and Tika Kristianti 2025. Analysis of Heat Transfer in Vehicle Engine Cooling Systems Using Radiators with Fin Variations. International Journal of Health, Economics, and Social Sciences (IJHESS). 7, 2 (Apr. 2025), 761~770. DOI:https://doi.org/10.56338/ijhess.v7i2.7285.