de Groen, Frances, author
Pan Books, 1981
Buku Teks
Scott, William Neville, author
University of Queensland Press, 1967
Buku Teks
Walker, Shirley
Oxford University Press, 1982
Buku Referensi
Walker, Shirley
University of Queensland Press, 1991
Buku Teks
Hope, A.D. (Alec Derwent), 1907-2000, author
Oxford University Press, 1975
Buku Teks