Clifton-Mogg, Caroline, author
Pageone , 2001
Buku Referensi
Linton, Harold, author
McGraw-Hill, 1999
Buku Teks
Edited by Xiaoyu Lu; organized by Jeff Li
Designerbook, [date of publication not identified]
Buku Referensi
Grant-Hays, Brenda, author
McGraw-hill, 2003
Buku Teks
MacDougall, Frances
Bulfinch Press, 2003
Buku Teks