Gaya APA
Jhon, J.
(2010).
26 Keys Of Happiness
(
Cet. 1)
.
Jakarta:
Raih Asah Sukses.
Gaya MLA
Jhon, J.
"26 Keys Of Happiness".
Cet. 1
Jakarta:
Raih Asah Sukses,
2010.
Text.