Putra, Alfian, Zaimahwati, Rizal Syahyadi, Teuku Rihayat, and Nurhanifa Aidy. 2021. “REMOVAL OF HG(II) METAL IONS USING KAOLIN ADSORBENTS MODIFIED WITH ANIONIC SURFACTANT AND EFFICIENT ULTRASONIC ASSISTED”. International Journal of Research -GRANTHAALAYAH 9 (11):72-84. https://doi.org/10.29121/granthaalayah.v9.i11.2021.4379.