Santosa, S.P., Tam, L.H., Gunawan, L. and Jusuf, A. 2016. The Influence of Sheet Metal Forming on The Axial Crushing Analysis of Top–Hat Columns. Mesin. 25, 1 (Sep. 2016), 41-53. DOI:https://doi.org/10.5614/MESIN.2016.25.1.4.