Gaya APA
SUBAGYO, P. et al
(1995).
Dasar-dasar operations research, edisi 2
.
Yogyakarta:
BPFE, Yogyakarta.
Gaya MLA
SUBAGYO, Pangestu. et al.
"Dasar-dasar operations research, edisi 2".
Yogyakarta:
BPFE, Yogyakarta,
1995.
Text.