Erosional and depositional features of disturbed geomorphological system – some observations for semi arid environment
 Artikel Jurnal
Geomorphological techniques / edited for the British Geomorphological Research Group by Andrew Goudie...[et al.]
Routledge , 1990
 Buku Teks
The concept of applied geomorphology with examples from Colombia, Indonesia and Thailand
 Artikel Jurnal
Some aspects of food security and social stress in the African arid and semi-arid environments
 Artikel Jurnal
Integrated urban water management : arid and semi-arid regions
Larry W. Mays, editor
UNESCO; CRC Press, 2009
 Buku Teks
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