APA Style
PT Pos Indonesia. (2003).
Jakarta:
PPM School Of Management.
Chicago Style
PT Pos Indonesia.
.
Jakarta:
PPM School Of Management,
2003.
.
MLA Style
PT Pos Indonesia.
.
Jakarta:
PPM School Of Management,
2003.
.
Turabian Style
PT Pos Indonesia.
Jakarta:
PPM School Of Management,
2003.
.