Purba, Luki Hariando, Bartholomeus Hutagalung, and Siwan Perangin-angin. 2025. “Experimental and Numerical Study on the Comparative Flexural Behavior of Geopolymer Concrete Beams Based on Metakaolin and Fly Ash”. Inersia : Jurnal Teknik Sipil Dan Arsitektur 21 (1):46-56. https://jurnal.uny.ac.id/index.php/inersia/article/view/78027.