Sewell, David F., author
Harvester Wheatsheaf, 1990
Buku Teks
edited by Wolfgang Schneider, Ruth Hengsteler, B. Sodian
Lawrence Erlbaum Assossiates, 2004
Buku Teks
Michael S. Gazzaniga, editor
MIT Press, 2000
Buku Teks SO
edited by Herman Liebaers; Marc Walckiers
K.G. Saur , 1991
Buku Teks
Solomon, Paul, author
McGraw-Hill Irwin, 2004
Buku Teks