Gaya APA
Alexander Gram Bell Dan Telephone. (2007).
Jakarta:
Gramedia.
Gaya Chicago
Alexander Gram Bell Dan Telephone.
2007.
Jakarta:
Gramedia,
2007.
Text.
Gaya MLA
Alexander Gram Bell Dan Telephone.
2007.
Jakarta:
Gramedia,
2007.
Text.
Gaya Turabian
Alexander Gram Bell Dan Telephone.
Jakarta:
Gramedia,
2007.
Print.