Gaya APA
Management. (1995).
:
Prentice Hall International Editions.
Gaya Chicago
Management.
Ed.6.
:
Prentice Hall International Editions,
1995.
.
Gaya MLA
Management.
Ed.6.
:
Prentice Hall International Editions,
1995.
.
Gaya Turabian
Management.
:
Prentice Hall International Editions,
1995.
.