Kagan, Shelly, author
Yale University Press, 2012
Buku Teks
Kagan, Shelly, author
Yale University Press, 2012
Buku Teks
Routledge, 1997
Buku Teks
William J. Buckley, Karen S. Feldt, editor and introduction
McGraw-Hill, 2013
Buku Teks
Guntheroth, Warren G.
Futura Publ., 1982
Buku Teks