Johnstone, Gary
Boxtree Limited, 1993
Buku Teks
Smith, Patrick
Patrick Stephens, 1995
Buku Teks
James, Henry, 1843-1916, author
England Bounty Books, 2014
Buku Teks
Yu, Hui, author
Intercontinental Press, 2010
Buku Teks
Dunne, Jemima, author
Dorling Kindersley, 2012
Buku Referensi