Gaya APA
Dairi, Gompul. (1994).
Botonic Mastic Asphalt .
:
HPJI.
Gaya Chicago
Dairi, Gompul.
Botonic Mastic Asphalt.
:
HPJI,
1994.
Computer Software.
Gaya MLA
Dairi, Gompul.
Botonic Mastic Asphalt.
:
HPJI,
1994.
Computer Software.
Gaya Turabian
Dairi, Gompul.
Botonic Mastic Asphalt.
:
HPJI,
1994.
Computer Software.