APA Style

Simandjuntak, J, P. et al (2003). Public Relations (Ed. 1, Cet. 1). Yogyakarta: Graha Ilmu.

MLA Style

Simandjuntak, John, P.. et al. "Public Relations". Ed. 1, Cet. 1 Yogyakarta: Graha Ilmu, 2003. .