Gaya APA
Thuesen, G.J, Fabrycky, W.J. (1989).
Engineering economy (7e).
New Jersey:
Prentice Hall.
Gaya Chicago
Thuesen, G.J, Fabrycky, W.J.
Engineering economy.
7e
New Jersey:
Prentice Hall,
1989.
Buku.
Gaya MLA
Thuesen, G.J, Fabrycky, W.J.
Engineering economy.
7e
New Jersey:
Prentice Hall,
1989.
Buku.
Gaya Turabian
Thuesen, G.J, Fabrycky, W.J.
Engineering economy.
7e
New Jersey:
Prentice Hall,
1989.
Buku.