Bhutan roads. ADB report
Bhutan: road improvement Project, A completion report by ADB. July 2007
A 48 page pdf, may take time to open
http://www.adb.org/Documents/PCRs/BHU/32288-BHU-PCR.pdf
A 48 page pdf, may take time to open
http://www.adb.org/Documents/PCRs/BHU/32288-BHU-PCR.pdf