Japar, Siti, and Freedy Kurniawan. “Lightweight Concrete With Mixed Foam Agent, Polymer and Bonding to Reach 300 Kg/Cm²”. IJIEEB International Journal of Integrated Education, Engineering and Business eISSN 2615-1596 pISSN 2615-2312 3, no. 1 (July 22, 2020): 55-63. Accessed December 5, 2025. http://jurnal.narotama.ac.id/index.php/ijieeb/article/view/1073.