Sandri Linna Sengkey, Geertje Efraty Kandiyoh, Ventje Berty Slat, Chris Hombokau. Properties of Geopolymer Paving Blocks Based On Fly Ash with Bottom Ash as A Sand Substitution. DE [Internet]. 2023Mar.5 [cited 2024May5];(1):154 -163. Available from: http://www.thedesignengineering.com/index.php/DE/article/view/9770