Gaya APA
PIAGET, J., INHELDER, B.
(2010).
PSIKOLOGI ANAK (The Psychology Of The Child)
.
Yogyakarta:
PUSTAKA PELAJAR.
Gaya MLA
PIAGET, JEAN., INHELDER, BARBEL.
"PSIKOLOGI ANAK (The Psychology Of The Child)".
Yogyakarta:
PUSTAKA PELAJAR,
2010.
Text.