Putra, R. M. S., Ritonga, M. J., & R, S. (2005). Tipologi pesan persuasif. Indeks.
Chicago Style (17th ed.) CitationPutra, R. Masri Sareb, M. Jamiluddin Ritonga, and Saptono R. Tipologi Pesan Persuasif. Indeks, 2005.
MLA (8th ed.) CitationPutra, R. Masri Sareb, et al. Tipologi Pesan Persuasif. Indeks, 2005.
Warning: These citations may not always be 100% accurate.