Johan, N.A. and Kutty, S.R.M. and Isa, M.H. and Muhamad, N.S. and Hashim, H. (2011) Adsorption of copper by using Microwave Incinerated Rice Husk Ash (MIRHA). World Academy of Science, Engineering and Technology, 80. pp. 1164-1168. ISSN 2010376X