Gaya APA
Operation Research. (1998).
Malang:
Institut Teknologi Nasional Malang.
Gaya Chicago
Operation Research.
.
Malang:
Institut Teknologi Nasional Malang,
1998.
Text.
Gaya MLA
Operation Research.
.
Malang:
Institut Teknologi Nasional Malang,
1998.
Text.
Gaya Turabian
Operation Research.
Malang:
Institut Teknologi Nasional Malang,
1998.
Print.