Gaya APA
Keppel, Geoffrey. (1982).
Design and analysis a researcher's handbook (edisi 2).
New Jersey:
Prentice Hall.
Gaya Chicago
Keppel, Geoffrey.
Design and analysis a researcher's handbook.
edisi 2
New Jersey:
Prentice Hall,
1982.
.
Gaya MLA
Keppel, Geoffrey.
Design and analysis a researcher's handbook.
edisi 2
New Jersey:
Prentice Hall,
1982.
.
Gaya Turabian
Keppel, Geoffrey.
Design and analysis a researcher's handbook.
edisi 2
New Jersey:
Prentice Hall,
1982.
.