References

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Eiamnor, A., 2006. Geomorphology. Thai Wattana panich, Bangkok, Thailand.

GISTDA., 2009. Geo-Informatics and Space Technology Textbook. Amarin Printing and Publishing, Thailand,.

Grab, S. and H. Svensen, 2011. Rock doughnut and pothole structures of the clarens Fm; Sandstone in the Karoo Basin, South Africa: Possible links to lower Jurassic fluid seepage. Geomorphology, 131: 14-27.
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RIT., 2001. Royal Institute of Thailand Geology Dictionary. Aroonkarnpim Publisher, Bangkok, Thailand,.

RIT., 2006. Royal Institute of Thailand Geolgraphy Dictionary. 4th Edn., Chuanpim Publisher, Bangkok, Thailand,.

Sengupta, S. and V.S. Kale, 2011. Evaluation of the role of rock properties in the development of potholes: A case study of the Indrayani knickpoint, Maharashtra. 120 157: 157-165.
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Springer, G.S., S. Tooth and E.E. Wohl, 2006. Theoretical modeling of stream potholes based upon empirical observations from the Orange River, Republic of South Africa. Geomorphology, 82: 160-176.
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Springer, G.S., S. Tooth and E.E. Wohl, 2006. Theoretical modeling of stream potholes based upon empirical observations from the Orange River, Republic of South Africa. Geomorphology, 82: 160-176.
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Suphet, J., 2008. Learn geographic information by ArcGIS Desktop 10.1 S.R. Mass Printing & Forms Inc., North Reading, Massachusetts.