APA Style
Napitupulu, Juanda. (1998).
Operation Research (1).
Malang:
Institut Teknologi Nasional.
Chicago Style
Napitupulu, Juanda.
Operation Research.
1
Malang:
Institut Teknologi Nasional,
1998.
Text.
MLA Style
Napitupulu, Juanda.
Operation Research.
1
Malang:
Institut Teknologi Nasional,
1998.
Text.
Turabian Style
Napitupulu, Juanda.
Operation Research.
1
Malang:
Institut Teknologi Nasional,
1998.
Print.