Gaya APA

Obat-Obat Penting. (2013). : .

Gaya Chicago

Obat-Obat Penting. Ed. Vi, Cet.3. : , 2013. .

Gaya MLA

Obat-Obat Penting. Ed. Vi, Cet.3. : , 2013. .

Gaya Turabian

Obat-Obat Penting. : , 2013. .