Gaya APA
Elka, P., Che,.CFA, W.
(2010).
Indonesia business guide 2010 2011
.
Jakarta:
Irai.
Gaya MLA
Elka, Pangestu,Maria., Che,.CFA, Wei,Lin.
"Indonesia business guide 2010 2011".
Jakarta:
Irai,
2010.
Text.