Gaya APA
LOHR, S, L., JULET, M, [.
(2010).
Sampling:
(
2nd ed.)
.
Australia:
Brooks/Cole.
Gaya MLA
LOHR, Sharon, L.., JULET, Michelle, [ed.].
"Sampling:".
2nd ed.
Australia:
Brooks/Cole,
2010.
Buku.