American Psychological Association, Inc.,, 2018
Majalah, Jurnal, Buletin
Lazarus, Richard S., author
Oxford University Press, 2006
Buku Teks
Burdman, Geri Marr, author
Prentice-Hall, 1986
Buku Teks
Cabeza, Roberto, author
Oxford University Press, 2016
eBooks
Bergman, Moe
"Baltimore: University Park Press, 1980",
Buku Teks