Rybacki, Karyn C. (Karyn Charles), 1947-
Pearson, 2014
Buku Teks
Foss, Sonja K., compiler
Waveland Press, 1985
Buku Teks
Sloane, Thomas O.
Oxford University Press, 2001
Buku Referensi
Aarts, Bas
Palgrave Macmillan, 2008
Buku Teks
Jordan, John E.
Harper & Row, Publishers, 1965
Buku Teks