Gaya APA
Subagyo, P., Asri, M.
(1992).
Dasar-dasar operations research
(
2nd ed)
.
Yogyakarta:
BPFE UGM.
Gaya MLA
Subagyo, Pangestu.., Asri, Marwan..
"Dasar-dasar operations research".
2nd ed
Yogyakarta:
BPFE UGM,
1992.
Printed Book.