Carpenter, Russell B.; Carpenter, Blyth C. (2002). The Blessings of Bhutan. University of Hawaii Press. pp. 7–8, 27, 123. ISBN0-8248-2679-5. Retrieved 2011-10-15.
Brown, Lindsay; Armington, Stan (2007). Bhutan(PDF). Country Guides (3 ed.). Lonely Planet. pp. 182–183. ISBN1-74059-529-7. Archived from the original(PDF) on 2011-06-07. Retrieved 2011-10-15.
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Brown, Lindsay; Armington, Stan (2007). Bhutan(PDF). Country Guides (3 ed.). Lonely Planet. pp. 182–183. ISBN1-74059-529-7. Archived from the original(PDF) on 2011-06-07. Retrieved 2011-10-15.