Santrock, John W.
McGraw-Hill, 2012
Buku Teks SO
Santrock, John W.
McGraw-Hill, 2018
Buku Teks SO
Whitmire, Richard
American Management Association, 2010
eBooks
Gredler, Margaret E.
Guilford Press, 2008
Buku Teks
Ormrod, Jeanne Ellis
Pearson Educational, Inc., 2003
Buku Teks