Ahlhorn, Frank, author
Springer, 2009
Buku Teks
Beatley, Timothy, author
University California Press, 2003
Buku Teks
Clark, John R., author
Lewis Publishers, 1996
Buku Referensi
by Lincoln D. Cathers...[et al.]; editor, J.F. Peel Brahtz
John Wiley, 1972
Buku Teks
Kay, Robert, author
Routledge, 2005
Buku Teks