Gaya APA
SMART ENGLISH FOR SECRETARIES. (2012).
Jakarta Barat:
PT.BHUANA ILMU POPULER.
Gaya Chicago
SMART ENGLISH FOR SECRETARIES.
1.
Jakarta Barat:
PT.BHUANA ILMU POPULER,
2012.
Non Fiksi.
Gaya MLA
SMART ENGLISH FOR SECRETARIES.
1.
Jakarta Barat:
PT.BHUANA ILMU POPULER,
2012.
Non Fiksi.
Gaya Turabian
SMART ENGLISH FOR SECRETARIES.
Jakarta Barat:
PT.BHUANA ILMU POPULER,
2012.
Non Fiksi.