Gaya APA

Tjay, T, H., Rahardja, K. (2015). Obat-Obat Penting (Ed.7). Jakarta: PT Gramedia.

Gaya MLA

Tjay, Tan, Hoan., Rahardja, Kirana. "Obat-Obat Penting". Ed.7 Jakarta: PT Gramedia, 2015. Text.