Gaya APA
Zulfikarijah, F., Wahyudi, S.
(2004).
Operation Research
(
1)
.
Malang:
Baayumedia.
Gaya MLA
Zulfikarijah, Fien., Wahyudi, Setiono.
"Operation Research".
1
Malang:
Baayumedia,
2004.
Text.