Ahmad Daud, N. A. ., Shamsuddin, M. R., Ayu Pradanawati, S., & Rabat, N. E. (2021). Preparation, characterization and performance evaluation of fly ash-based composite geopolymer membranes for methylene blue dye removal. Science, Engineering and Health Studies, 15, 21020011. https://doi.org/10.14456/sehs.2021.38