edited by John Lyons
Penguin Books, 1973
Buku Teks
Croft, William, author
Cambridge University Press, 2004
Buku Teks
edited by Harriet Luria, Deborah M. Seymour, Trudy Smoke
LEA, 2006
Buku Teks
Stankiewicz, Edward
Peter de Ridder Press , 1976
Buku Teks
The University of Sydney, 1958
Buku Teks