Gaya APA
V.Patton, C., David, S, S. (1986).
Basic Methods of Policy Analysis and Planning .
United Stated Of America:
Prentice-Hall.
Gaya MLA
V.Patton, Carl., David, S., Sawicki,.
"Basic Methods of Policy Analysis and Planning".
United Stated Of America:
Prentice-Hall,
1986.
Text.