Gaya APA
Graeff, J, A. (1993).
Communication For Health And Behavior Change ; A Developing Country Persective .
San Francisco:
Jossey-Bass Publisher.
Gaya MLA
Graeff, Judith, Allen.
"Communication For Health And Behavior Change ; A Developing Country Persective".
San Francisco:
Jossey-Bass Publisher,
1993.
Text.