Baumeister, Roy F., author
Thomson, 2008
Buku Teks
Baumeister
2009
Buku Teks
Garrison, Karl C.
International textbook , 1969
Buku Teks
Bishop, Michael A, author
Oxford University Press, 2005
Buku Teks
Baumeister, Roy F., author
Wardsword cengage learning, 2011
Buku Teks