Gaya APA
Civil Engineering. (2013).
Surabaya:
Petra Christian Univ..
Gaya Chicago
Civil Engineering.
Vol. 15 Num. 2.
Surabaya:
Petra Christian Univ.,
2013.
Jurnal Internasional.
Gaya MLA
Civil Engineering.
Vol. 15 Num. 2.
Surabaya:
Petra Christian Univ.,
2013.
Jurnal Internasional.
Gaya Turabian
Civil Engineering.
Surabaya:
Petra Christian Univ.,
2013.
Jurnal Internasional.