Gaya APA
Asri, M., Widayat, W.
(1986).
Linear programming
(
2nd ed)
.
Yogyakarta:
BPFE-Yogyakarta.
Gaya MLA
Asri, Marwan.., Widayat, Wahyu..
"Linear programming".
2nd ed
Yogyakarta:
BPFE-Yogyakarta,
1986.
Printed Book.