Gaya APA
Kroenke, D, M., Dolan, K, A.
(1987).
Business Computer Systems
.
California:
MITHCELL PUBLISHING.
Gaya MLA
Kroenke, David, M.., Dolan, Kathleen, A..
"Business Computer Systems".
California:
MITHCELL PUBLISHING,
1987.
Teks.