Gaya APA
R.Coven, S.
(2017).
The 7 Habits of Highly Effective People
.
Jakarta:
PT. Dunamis Intra Sarana.
Gaya MLA
R.Coven, Stephen.
"The 7 Habits of Highly Effective People".
Jakarta:
PT. Dunamis Intra Sarana,
2017.
273 hlm.; 20.