Robertson, S. Ian, author
Psychology Press, 2001
Buku Teks
Osaki, Shunji, author
Springer-Verlag, 1992
Buku Teks
King, Alan J., author
[, Springer], 2012
eBooks
Nelson, Barry L., author
McGraw-Hill Book , 1995
Buku Teks
Eide, Arvid R., author
McGraw-Hill, 2002
Buku Teks