Gaya APA
Ratnaningsih,Rahayu. (2003).
Happiness Made Simple (1).
:
Jakarta, Elex Media Komputindo.
Gaya Chicago
Ratnaningsih,Rahayu.
Happiness Made Simple.
1
:
Jakarta, Elex Media Komputindo,
2003.
.
Gaya MLA
Ratnaningsih,Rahayu.
Happiness Made Simple.
1
:
Jakarta, Elex Media Komputindo,
2003.
.
Gaya Turabian
Ratnaningsih,Rahayu.
Happiness Made Simple.
1
:
Jakarta, Elex Media Komputindo,
2003.
.