Gaya APA
Guba, Egon G., Lincoln, Yvonna.S. (1981).
Effective Evaluation .
San Francisco:
Jossey -Bass Publishers.
Gaya Chicago
Guba, Egon G., Lincoln, Yvonna.S.
Effective Evaluation.
San Francisco:
Jossey -Bass Publishers,
1981.
Text.
Gaya MLA
Guba, Egon G., Lincoln, Yvonna.S.
Effective Evaluation.
San Francisco:
Jossey -Bass Publishers,
1981.
Text.
Gaya Turabian
Guba, Egon G., Lincoln, Yvonna.S.
Effective Evaluation.
San Francisco:
Jossey -Bass Publishers,
1981.
Print.