Zulkarnain, Fahrizal, Satrio Wibowo, and Mohd Zailan Sulieman. “Evaluating the Elastic Modulus of Geopolymer Concrete: The Impact of Fly Ash As a Cement Substitute Using a No-Soaking Method for Sustainable Construction”. Journal of Advanced Research Design 126, no. 1 (March 21, 2025): 53–68. Accessed April 24, 2025. https://akademiabaru.com/submit/index.php/ard/article/view/6125.