Al-Haidari, Abdumuhsin A., Al-Taweel, Saja S. J., AND Jassim, Laith S.. " Adsorptive Removal Of Congo Red From Aqueous Solution By Local Chaff Surface: Thermodynamics And Kinetics Studies" Ibn AL- Haitham Journal For Pure and Applied Science [Online], Volume 26 Number 2 (26 April 2017)