Santrock, John W., author
McGraw-Hill Education, 2018
Buku Teks
Feldman, Robert S., author
McGraw-Hill, 2013
Buku Teks
Nietzel, Michael T., author
Prentice-Hall, 1998
Buku Teks
Chan, V.P. Yance, author
Gramedia, 2004
Buku Teks
Indra Wahju Hardjanti, author
Universitas Indonesia, 2017
Artikel Jurnal