Gaya APA
Marga, P, J. (1990).
Final Report Volume I: Gempol - Malang Toll Road Project Feasibility Study .
Bandung:
PT Jasa Marga.
Gaya MLA
Marga, PT, Jasa.
"Final Report Volume I: Gempol - Malang Toll Road Project Feasibility Study".
Bandung:
PT Jasa Marga,
1990.
Text.