Gaya APA
Sembel,Roy. (2007).
Energize Your Life .
Jakarta:
Elex Media Komputindo.
Gaya Chicago
Sembel,Roy.
Energize Your Life.
Jakarta:
Elex Media Komputindo,
2007.
Text.
Gaya MLA
Sembel,Roy.
Energize Your Life.
Jakarta:
Elex Media Komputindo,
2007.
Text.
Gaya Turabian
Sembel,Roy.
Energize Your Life.
Jakarta:
Elex Media Komputindo,
2007.
Print.