Gaya APA
Lewicki, R, J.
(2001).
Essentials of negotiation. Ed. 6
(
Ed.Ke-6)
.
Yogyakarta:
.
Gaya MLA
Lewicki, Roy, J..
"Essentials of negotiation. Ed. 6".
Ed.Ke-6
Yogyakarta:
,
2001.
Text.