Small, R.J.
Geomorphology and hydrology / R.J. Small
Longman, 1993
 Buku Teks
Space and time in geomorphology / edited, Colin E. Thorn
George Allen and Unwin, 1982
 Buku Teks
Erosional and depositional features of disturbed geomorphological system – some observations for semi arid environment
 Artikel Jurnal
Ritter, Dale F., author
Process geomorphology
W.C. Brown, 1986
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Verstappen, H. Th.
A geomorphological reconnaissance of Sumatra and adjacent islands (Indonesia) / H. Th. Verstappen
Wolters-Noordhoff , 1973
 Buku Teks
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