1. Chapter 8: housing characteristic;National Statistics Centre,2007
2. Rural development – putting the last first;Chambers,1983
3. National Human Development Report Lao PDR – Export of Electricity;Leechuefoung,2006
4. 3W pump as turbine microhydro at Mae Wei village, Tak province;Greacen,2008
5. Design and implementation of a 2.2kW pico hydro serving 110 households;Maher;Micro Hydro Centre – Nottingham Trent University,,2002