Antonius, Antonius, and Iswandi Imran. “Experimental Study of Confined Low-, Medium- and High-Strength Concrete Subjected to Concentric Compression”. Journal of Engineering and Technological Sciences 44, no. 3 (September 13, 2013): 252-269. Accessed April 24, 2024. https://journals.itb.ac.id/index.php/jets/article/view/197.