Horner, Chris
Cambridge, 2004
Buku Teks
Kerbo, Harold R.
McGraw-Hill, 2012
Buku Teks
Shweder, Richard A.
Harvard University Press, 1991
Buku Teks
Winters, Nathan B., 1937-
Gibbs Smith, 1986
Buku Teks
Costanzo, William V.
Wiley Blackwell, 2014
Buku Teks