Kongkaitpaiboon, V., K. Ruengpayungsak, and K. Wongcharee. “Influence of inclined circular-ring turbulators on thermohydraulic characteristics”. Journal of Research and Applications in Mechanical Engineering 3, no. 2 (August 14, 2018): 45. accessed February 21, 2026. https://ph01.tci-thaijo.org/index.php/jrame/article/view/140037.