Gaya APA
Piaget, J., Inhelder, B. (2016).
Psikologi Anak : The Psychology of the Child (Cet. 2).
Yogyakarta :
Pustaka Pelajar.
Gaya MLA
Piaget, Jean., Inhelder, Barbel.
"Psikologi Anak : The Psychology of the Child".
Cet. 2
Yogyakarta :
Pustaka Pelajar,
2016.
Buku.