Gaya APA
Covey, S, R.
(2013).
THE LEADER IN ME
(
Cet.4)
.
Jakarta:
PT Gramedia Pustaka Utama.
Gaya MLA
Covey, Stephen, R..
"THE LEADER IN ME".
Cet.4
Jakarta:
PT Gramedia Pustaka Utama,
2013.
Text.