Woodworth, James R., author
Thomson wadsworth, 2006
Buku Teks
Tydeman, John
The Australian Natonal University, 1977
Buku Teks
Cutt, James, author
Australian National University Press, 1977
Buku Teks
Bottomley, A. Keith, author
Pitman Press, 1978
Buku Teks
Eugene R. Wittkopf, James M. McCormick, editor
Rowman & Littlefield publisher INC, 2008
Buku Teks