2015. “Synthesis Report on Technical Assistance P132201: Cambodia Sanitation Marketing.” http://www-wds.worldbank.org/external/default/WDSContentServer/WDSP/IB/2015/04/30/090224b082e294f0/1_0/Rendered/PDF/Synthesis0repo0sanitation0marketing.pdf 10. Aisan Development Bank (ADB).
8. កូវ ភិរម្យ. កម្មវិធីអនាម័យ និងទឹកស្អាតធនាគារពិភពលោក (WSP). ២០១៥. “របាយការណ៍សង្ខេបស្តីពីជំនួយការបច្ចេកទេស P132201: ទីផ្សារអនាម័យនៅកម្ពុជា.” http://www-wds.worldbank.org/external/default/WDSContentServer/WDSP/IB/2015/04/30/090224b082e294f0/1_0/Rendered/PDF/Synthesis0repo0sanitation0marketing.pdf