1. Australian Financial Review 1991 Bustling Bangkok Bursting at the Seams, 22 May 43
2. Bangkok Post 1990a BMA Proposes Cleaning Canals with River Water, June 17, 3
3. Bangkok Post 1990b Canal Service to Start Soon, September 11, 7
4. Bangkok Post 1991 Proposal to Clean Up River Gets Nod, November 28, 1