Sagita, Christyowati Primi, Limpat Nulandaya, and Yehezkiel Steven Kurniawan. 2021. “Efficient and Low-Cost Removal of Methylene Blue Using Activated Natural Kaolinite Material”. Journal of Multidisciplinary Applied Natural Science 1 (2). Metro, Indonesia:69-77. https://doi.org/10.47352/jmans.v1i2.80.