Saysroy, Anucha, Uthai Phongrasamee, Chuangchai Chooppava, and Jakkrit Kuntong. “Heat transfer enhancement in a circular tube inserted with wavy twisted tape and alternate axes”. KKU Science Journal 48, no. 3 (September 30, 2020): 440–449. accessed April 13, 2025. https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/250196.