Isha, S.A., Hassan, S.A., AND Jahsim, K.G.. " Ability of kaolin clays in Adsorption of Toluene 0-Nitro Toluene and 2,4-Dinitro Toluene Part 1" Ibn AL- Haitham Journal For Pure and Applied Science [Online], Volume 21 Number 2 (22 September 2017)