Evans, Ivor H. N.
Oxford Univertity Press, 1990
Buku Teks
Bock, Carl
Graham Bush , 1988
Buku Teks
edited by Margaret Mead
Beacon Press, 1961
Buku Teks
King, Victor T., author
Blackwell, 1993
Buku Teks
King, Victor T., author
Blackwell, 1993
Buku Teks