Gaya APA
Hand book in research and evaluation. (1980).
San Diago:
EDITS.
Gaya Chicago
Hand book in research and evaluation.
.
San Diago:
EDITS,
1980.
Buku.
Gaya MLA
Hand book in research and evaluation.
.
San Diago:
EDITS,
1980.
Buku.
Gaya Turabian
Hand book in research and evaluation.
San Diago:
EDITS,
1980.
Buku.