Drinking Water Quality Standards. Accessed 15 February 2016. http://rdic.org/wp-content/uploads/2014/12/MIME-Drinking-Water-Quality-Standards-2004-en.pdf
4. ក្រសួងឧស្សាហកម្ម រ៉ែ និងថាមពល. “ស្តង់ដាគុណភាពទឹកផឹក.” ចូលមើលថ្ងៃទី១៥ ខែកុម្ភៈ ឆ្នាំ២០១៦។ http://rdic.org/wp-content/uploads/2014/12/MIME-Drinking-Water-Quality-Standards-2004-en.pdf