Gaya APA
Hariyanto, Sugeng. (2006).
English Business Correspondence (-).
YOGYAKARTA:
KANISIUS.
Gaya Chicago
Hariyanto, Sugeng.
English Business Correspondence.
-
YOGYAKARTA:
KANISIUS,
2006.
Text.
Gaya MLA
Hariyanto, Sugeng.
English Business Correspondence.
-
YOGYAKARTA:
KANISIUS,
2006.
Text.
Gaya Turabian
Hariyanto, Sugeng.
English Business Correspondence.
-
YOGYAKARTA:
KANISIUS,
2006.
Print.