Hari Crista, Ngudi, Sudharto P. Hadi, Erni Setyowati, and Aimmatul Husna. 2026. “Machine Learning Classification for Acoustic Mix Identification in Styrofoam Lightweight Concrete: A Feature Sensitivity Study”. Open International Journal of Informatics 14 (1):107-22. https://oiji.utm.my/index.php/oiji/article/view/385.