Lacroix, Nitya, author
Lorenz Books, 1994
Buku Referensi
editor, Catherine Stuart
Hermes House, 2015
Buku Teks
Davis, Patricia, author
The C.W. Daniel Company Limited, 1988
Buku Referensi
Maxwell-Hudson, Clare, author
Dorling Kindersley, 1988
Buku Referensi
Rush, Anne Kent
Aqurian , 1994
Buku Teks