Gaya APA
SUBAGYO, P., M.B.A., M, A, S.
(1989).
Dasar-Dasar Operations Research
(
2)
.
Yogyakarta:
BPFE.
Gaya MLA
SUBAGYO, Pangestu., M.B.A., Marwan, Asri,, S.E.,.
"Dasar-Dasar Operations Research".
2
Yogyakarta:
BPFE,
1989.
Text.