Gaya APA
Behling, J, H. (1984).
Guidenlines for preparing the research proposal Revised Edition : John H. Behling .
New York:
University Press of America.
Gaya MLA
Behling, John, H..
"Guidenlines for preparing the research proposal Revised Edition : John H. Behling".
New York:
University Press of America,
1984.
Buku.