Gaya APA
Smart English for secretaries. (2012).
:
PT. Bhuana Ilmu Populer.
Gaya Chicago
Smart English for secretaries.
.
:
PT. Bhuana Ilmu Populer,
2012.
Text.
Gaya MLA
Smart English for secretaries.
.
:
PT. Bhuana Ilmu Populer,
2012.
Text.
Gaya Turabian
Smart English for secretaries.
:
PT. Bhuana Ilmu Populer,
2012.
Print.