Novak, Mark, author
Pearson, 2014
Buku Teks
Newman, Anne B., editor
[Springer, ], 2012
eBooks
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