Dalrymple, G. Brent, author
The age of the earth
Stanford Univ.Press, 2001
 Buku Teks
Investigating the earth
Houghton Mifflin, 1967
 Buku Teks
Brown, G.C., author
The Inaccessible earth
Allen & Unwin, 1981
 Buku Teks
Extreme earth: wildlife, wild places, wild weather
Robert Cornraads and five outhers, author
Reader's Digest, 2015
 Buku Referensi
Gregory, Kenneth J., author
The earth's land surface landforms and processes in geomorphology
Sage , 2010
 Buku Teks
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