1. Sabins S.F (2000). Remote Sensing: Principles and Interpretation, Third
Edition. Freeman and Company, New York. ISBN: 0 – 7167-2442-1.
2. Lo, C.P (1986). Applied Remote Sensing (Longman).
3. Philipson, W.R (1997) Manual of Photographic Interpretation (2nd
edition) (American Society for Photogrammetry and Remote Sensing).
4. Colwell, R.N (ed.) (1983) Manual of Remote Sensing Second Edition in
2 volumes (American Society of Photogrammetry)