1. ADB . 1996. “Report and Recommendation of the President to the Board of Directors on a Proposed Loan to the Kingdom of Cambodia for the Phnom Penh Water Supply and Drainage Project. Asian Development Bank”. Manila
2. Biswas , A. and Tortajada , C. 2009. “Water Supply of Phnom Penh: A Most Remarkable Transformation. Research Report”. Atizapan, Mexico: Third World Centre for Water Management.
3. Bringing Safe Water to Phnom Penh's City
4. Pricewaterhouse Coopers (2009) Phnom Penh Water Supply Authority Financial Statements for the year ended 31 December 2008, Phnom Penh.