Westen, Drew
Buku Teks
Sanford, Anthony J.
Cambridge University Press, 2012
eBooks
Gazzaniga, Michael S.
Norton & Company, 2003
Buku Teks SO
Alexander Moreira-Almeida, Franklin Santana Santos, editors
Springer, 2012
eBooks
W.H. Freeman and Company, 1993
Buku Teks SO