Petre, Maya, author
ALbert Bonniers Forlag, 1958
Buku Teks
Anderson, Ian, author
Media masters publishing sdn. bhd., 2011
Buku Referensi
Ian Anderson
Media Master Pub., 2011
Buku Teks
Vrooland, Selma
Contact, 1990
Buku Teks
Gordon, Lois
Yale University Press, 1999
Buku Teks