Meftah Elgubbi, H. et al. 2020. Modification of kaolinite clay using benzyltriethylammonium chloride as a surfactant: Preparation and characterization. International Journal of Engineering & Technology. 9, 4 (Oct. 2020), 850–856. DOI:https://doi.org/10.14419/ijet.v9i4.31088.