Gaya APA

Soemirat, B., Yehuda, E. (2013). Opini publik (Second edition, First Printed). 2013: Universitas Terbuka.

Gaya MLA

Soemirat, Betty., Yehuda, Eddy. "Opini publik". Second edition, First Printed 2013: Universitas Terbuka, 2013. Text.