Santrock, John W., author
McGraw-Hill, 2007
Buku Teks
Rika Fauziah, author
2019
UI - Tesis (Membership)
Cobb, Nancy J., author
Mayfield Publishing Company , 2001
Buku Teks
Santrock, John W., author
Erlangga, 2007
Buku Teks
Mussen, Paul H.
Prentice-Hall, 1969
Buku Teks