Gaya APA
Littlejohn, S, W., Foss, K, A. (2009).
Teori komunikasi: theories of human communication (1).
Jakarta:
Salemba Humanika.
Gaya MLA
Littlejohn, Stephen, W.., Foss, Karen, A..
"Teori komunikasi: theories of human communication".
1
Jakarta:
Salemba Humanika,
2009.
Agribisnis.