APA Style
HARIYANTO, SUGENG. (2006).
ENGLISH BUSINESS CORRESPONDENCE .
YOGYAKARTA:
KANISIUS.
Chicago Style
HARIYANTO, SUGENG.
ENGLISH BUSINESS CORRESPONDENCE.
YOGYAKARTA:
KANISIUS,
2006.
Text.
MLA Style
HARIYANTO, SUGENG.
ENGLISH BUSINESS CORRESPONDENCE.
YOGYAKARTA:
KANISIUS,
2006.
Text.
Turabian Style
HARIYANTO, SUGENG.
ENGLISH BUSINESS CORRESPONDENCE.
YOGYAKARTA:
KANISIUS,
2006.
Print.