Gaya APA
Tampubolon,U.S.M.[Ed.]. (1997).
Bridging the future .
Jakarta:
Indosat.
Gaya Chicago
Tampubolon,U.S.M.[Ed.].
Bridging the future.
Jakarta:
Indosat,
1997.
Text.
Gaya MLA
Tampubolon,U.S.M.[Ed.].
Bridging the future.
Jakarta:
Indosat,
1997.
Text.
Gaya Turabian
Tampubolon,U.S.M.[Ed.].
Bridging the future.
Jakarta:
Indosat,
1997.
Print.