Sharudin, R. W., M. R. E. Mohd Azhar, M. S. Mat Shayuti, and S. Akbar. “A Review on Properties and Applications of Nano Clay, Silica Dioxide and Titanium Oxide”. Malaysian Journal of Chemical Engineering and Technology, vol. 4, no. 1, May 2021, pp. 67-72, doi:10.24191/mjcet.v4i1.13024.