A Ward Lock Book, 1997
Buku Referensi
Geddes-Brown, Leslie, author
Page One, 2000
Buku Referensi
Poplar, Vitta, author
Andrews McMeel Publishing, 2001
Buku Teks
Aves, Melanie, author
Rockport, 1999
Buku Teks
Copestick, Joanna, author
Page One , 1998
Buku Referensi