Lutfiansyah, Yopi, and Galen Tanjung. “Cost Comparison Analysis of Slab Structure Using Concrete Beam and Steel Beam”. Journal of Applied Science, Engineering, Technology, and Education 2, no. 1 (May 11, 2020): 88-96. Accessed April 18, 2024. https://ascijournal.eu/index.php/asci/article/view/62.