Le Roy, Michael K.
Wadsworth and Cengage Learning, 2013
Buku Teks
Coolican, Hugh
Psychology Press, 2014
Buku Teks
Coolican, Hugh
Hodder & Stoughton, 2009
Buku Teks
Fisher, Ronald A.
Oliver and Boyd, 1950
Buku Teks
Le Roy, Michael K.
Wadsworth, 2009
Buku Teks