Karningsih P, Kusumawardani C. Redesign of Railroad Stairs Using a Multi-Layer Quality Function Deployment Approach: Redesign Tangga Kereta Api Dengan Menggunakan Pendekatan Multi-Layer Quality Function Deployment. prozima [Internet]. 2022 Mar. 2 [cited 2025 Sep. 16];6(1):1-13. Available from: https://prozima.umsida.ac.id/index.php/prozima/article/view/1560