S. Japrin and M. Ibrahim, “Fused Deposition Modeling(FDM) Custom Internal Filling Structural Mechanics Simulation”, rpmme, vol. 2, no. 2, pp. 334–342, Jan. 2022, Accessed: Mar. 12, 2026. [Online]. Available: https://publisher.uthm.edu.my/periodicals/index.php/rpmme/article/view/3773