Boles, John B., author
Blackwell Publishers, 2002
Buku Teks
Jordan, Carl F, author
Springer, 2013
Buku Teks
Clark, Thomas D.
Oxford University Press, 1961
Buku Teks
A Mentor Book, 1991
Buku Teks
Rubin, Louis D.
University of Washington Press, 1963
Buku Teks