Reinhold, Karl Leonhard
Cambridge, 2006
Buku Teks
Altman, Matthew C
John Wiley & Sons, 2014
Buku Teks
Morgan, Diane
Routledge , 2000
Buku Teks
edited by Susan Meld Shell, Richard Velkley
Cambridge University Press, 2012
Buku Teks
edited by Beryl Logan
Routledge , 1996
Buku Teks