A. R.A. Hamid and A. F. Osman, “Effects of Ultrasonication Time on Thermal Stability and Swelling Behaviour of The Commercial Organo-Montmorillonite (O-MMT)”, IJET, vol. 7, no. 2.23, pp. 288–291, Apr. 2018, doi: 10.14419/ijet.v7i2.23.11934.