Handbook of child psychology and developmental science.
editor-in-chief Richard M. Lenrner
New Jersey Wiley, 2015
 Buku Referensi
Santrock, John W.
Child development
McGraw-Hill, 2007
 Buku Teks SO
Santrock, John W.
Perkembangan anak = Child development
Erlangga, 2007
 Buku Teks SO
Handbook of child psychology and developmental science.
editor-in-chief Richard M. Lenner
New Jersey Wiley, 2015
 Buku Referensi
Santrock, John W.
Child development
McGraw-Hill, 2001
 Buku Teks SO