Gaya APA
Lukas,Martha. (1981).
999 Tanya Jawab IPS .
Bandung:
Armico.
Gaya Chicago
Lukas,Martha.
999 Tanya Jawab IPS.
Bandung:
Armico,
1981.
.
Gaya MLA
Lukas,Martha.
999 Tanya Jawab IPS.
Bandung:
Armico,
1981.
.
Gaya Turabian
Lukas,Martha.
999 Tanya Jawab IPS.
Bandung:
Armico,
1981.
.