Gaya APA
Covey, S, R.
(2019).
The 7 Habits of Highly Efective People
.
Jakarta:
PT Dinamis Intra Sarana.
Gaya MLA
Covey, Stephen, R..
"The 7 Habits of Highly Efective People".
Jakarta:
PT Dinamis Intra Sarana,
2019.
Text.