Sage , 2014
Buku Teks
Gonzalez-Mena, Janet, author
McGraw-Hill, 2011
Buku Teks
Tim Waller, Judy Whitmarsh, Karen Clarke
McGraw-Hill, 2011
Buku Teks
Karen Menke Paciorek, editor
McGraw-Hill, 2014
Buku Teks
edited by Janet Moyles
McGraw-Hill, 2007
Buku Teks