Gaya APA
Lesikar, R, V., FLATLEY, M, E.
(2002).
Basic business communication:
(
8th ed.)
.
Boston:
McGraw-Hill Irwin.
Gaya MLA
Lesikar, Raymond, V.., FLATLEY, Marie, E..
"Basic business communication:".
8th ed.
Boston:
McGraw-Hill Irwin,
2002.
Buku.