Curl, James Stevens, author
Donhead, 1992
Buku Referensi
Glass, Jacqueline, author
Wiley-Academy, 2002
Buku Referensi
Ward Lock, 1997
Buku Referensi
Leach, Sid DelMar, author
Erlangga, 1993
Buku Referensi
Kusuma, B., author
Depdikbud, 1997
Buku Referensi