5. General Department of Mine Resources. Ministry of Mines and Energy. 2014. http://www.mme.gov.kh/administrator/gd-link-page.php?gd1=925
5. អគ្គនាយកដ្ឋានធនធានរ៉ែ. ក្រសួងរ៉ែ និងថាមពល. ២០១៤។ http://www.mme.gov.kh/administrator/gd-link-page.php?gd1=925