If you want to have a quick overview over river basins of Kabul shared with six neighbors. For basic information, it is really helpful.
http://mercury.ethz.ch/serviceengine/Files/ISN/113057/ipublicationdocument_singledocument/32a43945-331e-49ad-9ca7-bb37afdd7a97/en/2010-02_Making-the-most-of-Afghanistans.pdf

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