Ekaputri JJ, Triwulan T. GEOPOLYMER CONCRETE USING FLY ASH, TRASS, SIDOARJO MUD BASED MATERIAL. JCE [Internet]. 2025 Jul. 23 [cited 2026 Feb. 6];31(2):57. Available from: https://journal.its.ac.id/index.php/jce/article/view/7594