Gaya APA
Sani, R, A.
(2009).
Abstrak hasil penelitian [edisi 49]
(
Ed. 49)
.
Medan:
Bank Indonesia Press.
Gaya MLA
Sani, Ridwan, Abdullah.
"Abstrak hasil penelitian [edisi 49]".
Ed. 49
Medan:
Bank Indonesia Press,
2009.
Text.