Gaya APA
R.Covey, S.
(2010).
The 7 Habits of Highly Effective People
.
Jakarta:
Bina Rupa Aksaa.
Gaya MLA
R.Covey, Stephen.
"The 7 Habits of Highly Effective People".
Jakarta:
Bina Rupa Aksaa,
2010.
Text.