Gaya APA
FRITZ, ROGER. (2008).
THE POWER OF A POSITIVE ATTITUDE .
Jakarta:
GRAMEDIA PUSTAKA UTAMA.
Gaya Chicago
FRITZ, ROGER.
THE POWER OF A POSITIVE ATTITUDE.
Jakarta:
GRAMEDIA PUSTAKA UTAMA,
2008.
Text.
Gaya MLA
FRITZ, ROGER.
THE POWER OF A POSITIVE ATTITUDE.
Jakarta:
GRAMEDIA PUSTAKA UTAMA,
2008.
Text.
Gaya Turabian
FRITZ, ROGER.
THE POWER OF A POSITIVE ATTITUDE.
Jakarta:
GRAMEDIA PUSTAKA UTAMA,
2008.
Print.