Gaya APA
Marga, D, J, B. (1993).
The Formation and Management Of A National Road Making Materials Inventory .
Bandung:
TRL.
Gaya MLA
Marga, Direktorat, Jenderal, Bina.
"The Formation and Management Of A National Road Making Materials Inventory".
Bandung:
TRL,
1993.
Chart.