Assiter, Alison, author
Routledge, 1996
Buku Teks
Sommers-Flanagan, John, author
John Wiley & Sons, 2012
Buku Teks
Sharf, Richard S., author
Brooks/Cole Cengage Learning, 2012
Buku Teks
Hole, Judith, author
Quadrangle Books, 1971
Buku Teks
Joni Lovenduski
Cambridge University Press, 2005
Buku Teks