Gaya APA
dkk, P, S.
(1991).
Dasar-dasar Operations Research
(
Ed. 2, Cet. 7)
.
Yogyakarta:
BPFE.
Gaya MLA
dkk, Pangestu, Subbagyo.
"Dasar-dasar Operations Research".
Ed. 2, Cet. 7
Yogyakarta:
BPFE,
1991.
Text.