Extreme earth: wildlife, wild places, wild weather
Robert Cornraads and five outhers, author
Reader's Digest, 2015
 Buku Referensi
Investigating the earth
Houghton Mifflin, 1967
 Buku Teks
Konferensi tingkat tinggi bumi : Rio De janeiro, 3-14 Juni 1992 / Deppen RI
Departemen Penerangan RI, 1992
 Buku Teks
Brown, Bruce, editor
The Miracle Planet/ Bruce Brown and Lane Morgan
Merehurst , 1990
 Buku Teks
Brown, G.C., author
The Inaccessible earth
Allen & Unwin, 1981
 Buku Teks
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