Irvine, Elizabeth E., author
Pergamon Press, 1979
Buku Teks
Reichert, Elisabeth, author
Columbia University Press, 2003
Buku Teks
Ross, Sheldon M., author
Cambridge University Press, 2003
Buku Teks
Dubois, Brenda, 1949-, author
Allyn and Boston, 1992
Buku Teks
Gore, M.S., author
Asia Publishing House, 1965
Buku Teks