The Child as psychologist : an introduction to the development of social cognition
edited by Mark Bennett
Harvester Wheatsheaf, 1993
 Buku Teks SO
Handbook of child psychology : volume 1, theoretical models of human development
William Damon, editor-in-chief
John Wiley & Sons, 1998
 Buku Referensi
Hurlock, Elizabeth Bergner, 1898-
Child development
McGraw-Hill, 1985
 Buku Teks
Hurlock, Elizabeth Bergner, 1898-
Child development
McGraw-Hill, 1978
 Buku Teks
Santrock, John W.
Child development
McGraw-Hill, 2001
 Buku Teks SO