Gaya APA
Carmichael, A., Dja'far, .
(1991).
NETWORK & MULTI-LEVEL MARKETING
(
Ed.2)
.
Jakarta:
Pustaka Delapratasa.
Gaya MLA
Carmichael, Allen., Dja'far, .
"NETWORK & MULTI-LEVEL MARKETING".
Ed.2
Jakarta:
Pustaka Delapratasa,
1991.
Text.