Jamil, Muhammad Hanif. “Defect Size Comparison Using Infrared Thermography Method and Actual Measurement On Glass Fiber Reinforced Polymer”. Research Progress in Mechanical and Manufacturing Engineering, vol. 4, no. 1, Aug. 2023, pp. 181-7, https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/9084.