Gaya APA

Beaty, J, J., Rakhmat, A. (2013). Observasi Perkembangan Anak Usia Dini (Observing Development of the Young child) (7). Jakarta: Prenadamedia Group.

Gaya MLA

Beaty, Janice, J.., Rakhmat, Arif. "Observasi Perkembangan Anak Usia Dini (Observing Development of the Young child)". 7 Jakarta: Prenadamedia Group, 2013. Text.