Dângrêk Mountains (English Wikipedia)

Fenton, James (25 April 1975). "The bitter end in Cambodia". The New Statesman. Archived from the original on 20 June 2019. Retrieved 20 June 2019. "The bitter end in Cambodia". Archived from the original on 20 June 2019. Retrieved 20 June 2019.{{cite web}}: CS1 maint: bot: original URL status unknown (link)

osu.edu (Global: 2,333^rd place; English: 1,632^nd place)

"Phanom Dong Rak Wildlife Sanctuary". Archived from the original on 2012-09-11. Retrieved 2012-02-19.
"Yot Dom Wildlife Sanctuary". Archived from the original on 2014-02-27. Retrieved 2012-02-19.
"Huai Sala Wildlife Sanctuary". Archived from the original on 2012-09-11. Retrieved 2012-02-19.

Svasti, Pichaya (22 May 2008). "A fine line; The sovereignty dispute over sacred site Preah Vihear continues". SEAArch - Southeast Asian Archaeology. Bangkok Post. Retrieved 20 June 2019.

"Phanom Dong Rak". Archived from the original on 2012-04-26. Retrieved 2011-12-17. "Phanom Dong Rak Sub". Archived from the original on 2012-04-26. Retrieved 2011-12-17.

"Phanom Dong Rak". Archived from the original on 2012-04-26. Retrieved 2011-12-17. "Phanom Dong Rak Sub". Archived from the original on 2012-04-26. Retrieved 2011-12-17.
"Phanom Dong Rak Wildlife Sanctuary". Archived from the original on 2012-09-11. Retrieved 2012-02-19.
"Yot Dom Wildlife Sanctuary". Archived from the original on 2014-02-27. Retrieved 2012-02-19.
"Huai Sala Wildlife Sanctuary". Archived from the original on 2012-09-11. Retrieved 2012-02-19.
Fenton, James (25 April 1975). "The bitter end in Cambodia". The New Statesman. Archived from the original on 20 June 2019. Retrieved 20 June 2019. "The bitter end in Cambodia". Archived from the original on 20 June 2019. Retrieved 20 June 2019.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
Kelvin Rowley, Second Life, Second Death: The Khmer Rouge After 1978 Archived 2016-02-16 at the Wayback Machine
Bangkok Post - 3 Surin border districts 'disaster zones'