Gaya APA
Covey, Stephen R.. (1969).
The 8 habit from effectiveness to greatness .
Singapore:
Free Press.
Gaya Chicago
Covey, Stephen R..
The 8 habit from effectiveness to greatness.
Singapore:
Free Press,
1969.
Text.
Gaya MLA
Covey, Stephen R..
The 8 habit from effectiveness to greatness.
Singapore:
Free Press,
1969.
Text.
Gaya Turabian
Covey, Stephen R..
The 8 habit from effectiveness to greatness.
Singapore:
Free Press,
1969.
Print.