| | Vínculos y referencias externos
1. Ministry of Population and Environment, Nepal
2. Eduspace
3. Canada Centre for Remote Sensing
4. Mountain Environment and Natural Resources Information Systems (MENRIS) International Centre for Integrated Mountain Development (ICIMOD)
5. T. M., Lillisand, & Keifer, R. W., Remote Sensing and Image Interpretation, John Willey & sons Inc., New York, 4th Edition, 1994
6. Colls, Jerermy, Air Pollution, 11 New Fetter Lane, London Ec4P 4EE, Spon Press, 2002, p 60.
7. Bhusan Tuladhar et. al., A report on Health Impacts of Kathmandu valley, submitted to Kathmandu Electric Vehicle Alliance, Kathmandu, September 2003.
8. C.P.LO & Yeung K.W Albert, Concepts and Techniques of Geographic Information Systems, Prentice-Hall, Inc., 2002.
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