edited by A.D. Boardman
John Wiley & Sons, 1980
Buku Teks
Gewirtz, Herman, author
Barron`s, 1994
Buku Teks
Rees, W.G., author
Cambridge University Press, 1994
Buku Teks
Arons, Arnold B., author
John Wiley & Sons, 1990
Buku Teks
Carico, Charles
John Wiley & Sons, 1983
Buku Teks