Suseno, Hendro. “Effect of Coarse Aggregate Treatment On Characteristics of Pumice and Scoria Lightweight Concretes”. International Journal of Integrated Engineering 15, no. 1 (April 4, 2023): 339–351. Accessed August 7, 2026. https://journal.uthm.edu.my/index.php/ijie/article/view/9480.