Gaya APA
Hasdianah, , Dalen, D., B., V. (1979).
Understanding Educational Research An Introduction (Fourth Edition).
New York:
McGraw-HillBook Company.
Gaya MLA
Hasdianah, , Dalen, D., B., V..
Understanding Educational Research An Introduction.
Fourth Edition
New York:
McGraw-HillBook Company,
1979.
Text.