Gaya APA
COVEY, ., Sean, .
(2001).
The 7 Habits of Highly Efffective Teens
.
Jakarta:
Binarupa Aksara.
Gaya MLA
COVEY, ., Sean, .
"The 7 Habits of Highly Efffective Teens".
Jakarta:
Binarupa Aksara,
2001.
buku.