Maulana F, Setiawan AA. The Effect of Waste Flex Banner Fiber on Mechanical Properties of Geopolymer Concrete. komposit [Internet]. 2025 Aug. 5 [cited 2025 Dec. 5];9(2):429-36. Available from: https://ejournal.uika-bogor.ac.id/index.php/komposit/article/view/19259