1. Abdallah, C., Khawlie, M., Shaban, A. and Bou Kheir, R. (2002) A method comparing between drainage networks extracted from DEM and conventional approaches on a pilot area in Lebanon. Proceedings of the International Symposium on Remote Sensing, Damascus, Syria, 9–12 December.
2. Alam, M.K., Hossain, A.K.M.S., Khan, M.R. and Whitney, J.W. (1990) Geological Map of Bangladesh. Geol. Surv. Bangladesh, Dhaka, (Scale 1.1,000,000).
3. Chorowicz, J., Ichoku, V., Riazanoff, S., Kim, Y. and Cervelle, B. (1992) A combined algorithm for automated drainage network extraction. Water Resource Res., v.28, pp.1293–1302.
4. Greenbaum, D. (1985) Review of remote sensing applications to groundwater exploration in basement and regolith. British Geol. Surv. Report, OD-85(8), 36p.
5. Horton, R.E. (1945) Erosion development of streams and their drainage basins. Hydrol Appl. of Morph., Bull. Geol. Soc. Amer., v.56, pp.275–370.