Nurwidayati, R., A. R. Saidy, N. Chairunnisa, H. Wardhana, and . Mariamah. “The Influence of Physical Properties on the Durability and Compressive Strength of Fly Ash-Based Geopolymer Mortar under Tidal Acidic Exposure”. Engineering, Technology & Applied Science Research, vol. 15, no. 6, Dec. 2025, pp. 30196-03, doi:10.48084/etasr.14919.