compiled by Jenney Morgan
Routledge , 1996
Buku Referensi
London, H.I.
Sydney University Press, 1970
Buku Teks SO
Jones, Robert P. (Robert Patrick)
Simon & Schuster Paperbacks, 2017
Buku Teks SO
Pope, David
ASEAN-Australia Joint Research Project , 1985
Buku Teks SO
Isbister, John
Kumarian Press, 1996
Buku Teks SO