Morris, Edward E.
Sydney University Press,, 1972
Buku Referensi
Carney, Edward
Routledge,, 1997
Buku Teks
Ricky Ganang, 1951-, author
National department for culture & Arts, 2009
Buku Referensi
Wortabet, John, author
Frederick Ungar Publishing, 1954
Buku Referensi
Scotland, 1999
Buku Referensi