Scobie, Janet I.
George Allen and Unwin, 1959
Buku Teks
Allsop, Jake
Cassell, 1981
Buku Teks
Tomasowa, Francien Herlen, author
Universitas Brawijaya , 2005
Buku Teks
Tomasowa, Francien Herlen, author
Universitas Brawijaya, 2005
Buku Teks
Eastwood, John, author
Oxford University Press, 1994
Buku Teks