APA Style
Covey, S, R., Budijanto, .
(2003).
7 Habits of Highly Effective People
.
Jakarta Barat:
Binarupa Aksara.
MLA Style
Covey, Stephen, R.., Budijanto, .
"7 Habits of Highly Effective People".
Jakarta Barat:
Binarupa Aksara,
2003.
print.