Subramanian Senthilkannan Muthu, Yi Li, Jun-Yan Hu, Mok, P. Y., An Exploratory Comparative Study on Eco-Impact of Paper and Plastic Bags, Proceedings of The 4th WACBE World Congress-Special Symposium Textile Bioengineering (WACBE-TBIS 2009), pp718-730, July 26-29 2009, Hong Kong.