Irum, A. , Mumtaz, S. , Rehman, A. , Naz, I. , Ahmed, S. (2015), 'Treatment of Simulated Textile Wastewater Containing Reactive Azo Dyes Using Laboratory Scale Trickling Filter', World Academy of Science, Engineering and Technology, Open Science Index 97, International Journal of Materials and Textile Engineering, 9(1), 1 - 7.