Gaya APA
Covey, S. (2001).
The 7 habits of highly effective teens : the ultimate teenage success guide (Cetakan 1).
Jakarta:
Binarupa Aksara.
Gaya MLA
Covey, Sean.
"The 7 habits of highly effective teens : the ultimate teenage success guide".
Cetakan 1
Jakarta:
Binarupa Aksara,
2001.
Text.