Bolong N, Saad I, Arshad SE. Effect of Sodium Hydroxide and Mould Shape in Geopolymer Fabrication Made With Synthesised Local Clay for Water Filtration. AMST [Internet]. 2017 Nov. 13 [cited 2024 Apr. 27];18(1). Available from: https://amst.utm.my/index.php/amst/article/view/16