Strong, Anna Louise, author
Doubleday & Company, Inc.,, 1949
Buku Teks
Blecher, Marc J.
Pinter, 1997
Buku Teks
Lindsay, Michael
Melbourne University Press, 955
Buku Teks
Levenson, Joseph R.
University of California Press, 1965
Buku Teks
Boyle, John Hunter
Stanford University Press, 1972
Buku Teks