M. L. ADRI and DR Ng Chuan Huat, “Analysis Of Forming Limit Diagrams In Aluminum Sheet Alloy by Universal Tensile Testing”, rpmme, vol. 3, no. 1, pp. 632–637, Aug. 2022, Accessed: Mar. 12, 2026. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/4698