Rafif Ibnu Ardiansyah, Achmad Fauzan Hery Soegiharto, Mohamad Irkham Mamungkas and Abi Mufid Octavio 2026. Studying the Effect of Stiffener Configurations on the Structural Response of Hopper Wagon Using Finite Element Analysis. Advances in Technology Innovation. (Jun. 2026). DOI:https://doi.org/10.46604/aiti.2026.16309.