Gaya APA

Datta, S., Septiana, D. (2012). Wonders of Science 2 for Primary School Year II . Surabaya: PT Quadra.

Gaya MLA

Datta, Shakuntala., Septiana, Diana. "Wonders of Science 2 for Primary School Year II". Surabaya: PT Quadra, 2012. Text.