Biodegradation of a sulphonated Azo Dye, 4-amino-1-1- Azobenzene-3-4'-Disulphonic acid / by Noor Aini Abdul Rashid, author, Chan, Giek Far, author, Abdul Rahim Mohd. Yusoff, author, The International Water Association Conference on Water and Wastewater Management for Developing Countries (2001 : Kuala Lumpur)