Gaya APA
Second Seminar on Ports and Inland Waterways Proceedings. (1992).
Surabaya:
Departemen perhubungan Perumpel III Tanjung Perak.
Gaya MLA
Second Seminar on Ports and Inland Waterways Proceedings.
.
Surabaya:
Departemen perhubungan Perumpel III Tanjung Perak,
1992.
Buku.