Gilluly, James
Principles of geology
W.H. Freeman, 1975
 Buku Referensi
Gilluly, James
Principles of geology
W.H. Freeman, 1968
 Buku Teks
Attwell, P.B.
Principles of engineering geology
Chapman and Hall, 1976
 Buku Teks
Gilluly, James
Principles of geology
W.H. Freeman, 1968
 Buku Teks
Lange, Oktavii Konstantinovich, 1883-1975
General geology
Foreign Languages Publishing House , 196?
 Buku Teks