Gaya APA
Executive Decition. (1970).
Amerika:
South-Western College Publishing.
Gaya Chicago
Executive Decition.
Ed.1.
Amerika:
South-Western College Publishing,
1970.
.
Gaya MLA
Executive Decition.
Ed.1.
Amerika:
South-Western College Publishing,
1970.
.
Gaya Turabian
Executive Decition.
Amerika:
South-Western College Publishing,
1970.
.