Horwitz-Grahame, 1965
Buku Teks
Inglis, Kenneth Stanley
Melbourne University Press, 1974
Buku Teks
O`Connor, Mark, author
Megalong Book, 1988
Buku Teks
Hosseini, Khaled, author
Penguin Books, 2013
Buku Teks
Walker, Bryce S., author
Time-Life Books, 1973
Buku Teks