Walker, Kath
The Jacaranda Press, 1981
Buku Teks
Ananta Iswari
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1987
UI - Skripsi Membership
O`Dowd, Bernard
Angust & Robertson, 1963
Buku Teks
Dawe, Bruce
Cheshire, 1969
Buku Teks
chosen by George Mackaness
Angus & Robertson , 1952
Buku Teks