Cricket Liu; Jerry Peek; Russ Jones; Bryan Buus; Adrian Nye
O'Reilly, 1994
Buku Teks
Saez, Eileen Elliott de
Facet Pub, 2002
Buku Teks
edited by S. Robert Hernandez, Stephen J.O.Connor
Delmar/Cengage Learning, 2010
Buku Teks
Roberts, Sue
Facet Publishing, 2004
Buku Teks
Saez, Eileen Elliott de
Facet, 2002
Buku Teks