Karohika IMG, Rimasfirli MF, Widiyarta IM, Antara ING, Mogi IKA. Topology Optimization of Car Doorstep Using Simulation Method. IJIE. 2024;16(2):123-131. Accessed April 7, 2026. https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/16233