Gaya APA
Newnan. (1990).
Engineering economic analysis .
Jakarta:
Binarupa Aksara.
Gaya Chicago
Newnan.
Engineering economic analysis.
Jakarta:
Binarupa Aksara,
1990.
Text.
Gaya MLA
Newnan.
Engineering economic analysis.
Jakarta:
Binarupa Aksara,
1990.
Text.
Gaya Turabian
Newnan.
Engineering economic analysis.
Jakarta:
Binarupa Aksara,
1990.
Print.