Gaya APA
Lesikar, R, V.
(1991).
Basic Business Communication
(
Edisi 5 ; cetakan 2)
.
amerika:
Boston ; Richard D Irwin.
Gaya MLA
Lesikar, Raymond, V.
"Basic Business Communication".
Edisi 5 ; cetakan 2
amerika:
Boston ; Richard D Irwin,
1991.
Text.