Gaya APA
Nasution, Amrinsyah. (1988).
Pavement on Organic Subgrades .
Bandung:
IRE.
Gaya Chicago
Nasution, Amrinsyah.
Pavement on Organic Subgrades.
Bandung:
IRE,
1988.
Text.
Gaya MLA
Nasution, Amrinsyah.
Pavement on Organic Subgrades.
Bandung:
IRE,
1988.
Text.
Gaya Turabian
Nasution, Amrinsyah.
Pavement on Organic Subgrades.
Bandung:
IRE,
1988.
Print.