Bickenbach, Jerome E., 1948-, author
Sage, 2012
Buku Teks
Gillespie, Alexander, author
Oxford University press, 2014
Buku Teks
American Association for the Advancement of Science, 1975
Buku Teks
Blackwell, 2007
Buku Teks
edited by John Tingle and Alan Cribb
Blackwell, 2007
Buku Teks