Patah, Dahlia, Amry Dasar, and Nurazuwa Md. Noor. “The Effects of Palm Oil Fuel Ash on Mechanical and Durability Properties of Sustainable Foamed Concrete”. Journal of the Civil Engineering Forum 11, no. 1 (January 17, 2025): 75-84. Accessed January 22, 2025. https://journal.ugm.ac.id/v3/JCEF/article/view/13749.