Young, Jacqueline
London Thorsons 1992,
Buku Teks
Rush, Anne Kent
Aqurian , 1994
Buku Teks
Maxwell-Hudson, Clare, author
Dorling Kindersley, 1988
Buku Referensi
Braun, Mary Beth.
Lippincott, Williams & Wilkins, 2008
Multimedia
Paoli, Carlo De, author
Headline Book Publishing, 1995
Buku Referensi