Rasoulifard, MH, Nader Taheri-Qazvini, E Farhangnia, A Heidari, and SMM Doust Mohamadi. 2010. “Removal of Direct Yellow 9 and Reactive Orange 122 from Contaminated Water Using Chitosan As a Polymeric Bioadsorbent by Adsorption Process”. Journal of Color Science and Technology 4 (1): 17-23.