Gaya APA
Hasibuan, H.A.B. (1980).
Resarch activities of the Indonesian Road Research Institute .
:
ARRB.
Gaya Chicago
Hasibuan, H.A.B.
Resarch activities of the Indonesian Road Research Institute.
:
ARRB,
1980.
Computer Software.
Gaya MLA
Hasibuan, H.A.B.
Resarch activities of the Indonesian Road Research Institute.
:
ARRB,
1980.
Computer Software.
Gaya Turabian
Hasibuan, H.A.B.
Resarch activities of the Indonesian Road Research Institute.
:
ARRB,
1980.
Computer Software.