Williams, Peter J
Longman, 1982
Buku Teks
Lisle, Richard J.
Wiley-Blackwel, 2011
Buku Teks
Hiscock, Kevin. M.author
Wiley Blackwell, 2014
Buku Teks
Bates, Robert L., editors
Anchor Books, 1984
Buku Referensi
McGraw-Hill dictionary of earth science
McGraw-Hill, 2003
Buku Referensi