Ayanda, O. S.; Fatoki, O. S.; Adekola, F. A.; Ximba, B. J.; Tijani, J. O.; Petrik, L. F. A Comparative Study of the Physico-Chemical Properties and Methylene Blue Adsorption Behaviour of Fly Ash, Nano-Oxides and the Composite Materials of Nano-Oxides and Fly Ash. 64 2014, 2, 148-165.