Gaya APA
Wahyono, S., Shalahuddin, L.
(2012).
Prosedur Izin Penelitian
.
jakarta:
BPPT.
Gaya MLA
Wahyono, Sri., Shalahuddin, Lukman.
"Prosedur Izin Penelitian".
jakarta:
BPPT,
2012.
Text.