Gaya APA
Child development. (2012).
Boston:
Pearson Education Int..
Gaya Chicago
Child development.
6th ed..
Boston:
Pearson Education Int.,
2012.
Buku.
Gaya MLA
Child development.
6th ed..
Boston:
Pearson Education Int.,
2012.
Buku.
Gaya Turabian
Child development.
Boston:
Pearson Education Int.,
2012.
Buku.