edited by Benjamin Schneider
Lawrence erlbaum associates, 2004
Buku Teks
edited by Rom Harre
Basil Blackwell, 1976
Buku Teks
edited by Neil D. Christiansen, Robert P. Tett
Brunner-Routledge, 2013
Buku Teks
Ward, Kate
McGraw-Hill, 2012
Buku Referensi
Tieger, Paul D.
Litle, Brown, 2014
Buku Teks