Hirsch, Eric Donald, Jr., author
Schwartz Publishing, 1988
Buku Teks
Hirsch, Eric Donald, Jr., author
Sidney Schwartz, 1988
Buku Teks
Krabbe, Tim
Bert Bakker, 2002
Buku Teks
Murphy, Emmett C., author
Gramedia Pustaka Utama, 1998
Buku Teks
edited by Barbara Ching and Gerald W. Creed
Routledge , 1997
Buku Teks