Whistley, David S, author
Introduction to rock art research
Left Coast Press, inc., 2005
 Buku Teks
Whitley, David S., author
Introduction to rock art research
California Left Coast Press, 2011
 Buku Teks
McNally, G. H., author
Soil and rock construction materials
E & FN Spon, 1998
 Buku Teks
Jeffery, P.G., author
Chemical methods of rock analysis
Pergamon Press, 1981
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Pusch, R., author
Rock mechanics on a geological base
Elsevier, 1995
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