Kathryn S. Plaisance
Springer, 2012
eBooks
Sober, Elliott, author
Westview Press, 1993
Buku Teks
edited by Trevor Archer, Stefan Hansen
Lawrence Erlbaum Associates, 1991
Buku Teks
Allen, Colin
MIT Press , 1997
Buku Teks
Peter H. Raven
McGraw-Hill, Higher Education, 2008
Buku Teks