Gaya APA
Ekonomi Teknik=Engineering Economy. (2001).
Jakarta:
Prenhallindo.
Gaya Chicago
Ekonomi Teknik=Engineering Economy.
Ed.9.
Jakarta:
Prenhallindo,
2001.
.
Gaya MLA
Ekonomi Teknik=Engineering Economy.
Ed.9.
Jakarta:
Prenhallindo,
2001.
.
Gaya Turabian
Ekonomi Teknik=Engineering Economy.
Jakarta:
Prenhallindo,
2001.
.