Gaya APA
Solid Waste Management. (1997).
INDAH SURABAYA:
Sidoyoso Offset.
Gaya Chicago
Solid Waste Management.
.
INDAH SURABAYA:
Sidoyoso Offset,
1997.
Text.
Gaya MLA
Solid Waste Management.
.
INDAH SURABAYA:
Sidoyoso Offset,
1997.
Text.
Gaya Turabian
Solid Waste Management.
INDAH SURABAYA:
Sidoyoso Offset,
1997.
Print.