Pratomo, D. B. S., Purnomo, H., Winardi, Y., Fadelan, & Arifin, R. (2026). Finite Element Analysis of 20×20 ft Container Flat Wagon Underframe Structure Using S355J2 Steel. Journal of Sustainable Materials Processing and Management , 6(1), 20-28. https://publisher.uthm.edu.my/ojs/index.php/jsmpm/article/view/25258