Lua APA (7ú heag.)

JEFKINS, F. (1995). Public relations. Erlangga.

Lua i Stíl Chicago (17ú heag.)

JEFKINS, Frank. Public Relations. Jakarta: Erlangga, 1995.

Lua MLA (9ú heag.)

JEFKINS, Frank. Public Relations. Erlangga, 1995.

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