Gaya APA
Digital Communications. (1995).
Singapore:
Mcgraw-Hill Book Company.
Gaya Chicago
Digital Communications.
3.
Singapore:
Mcgraw-Hill Book Company,
1995.
.
Gaya MLA
Digital Communications.
3.
Singapore:
Mcgraw-Hill Book Company,
1995.
.
Gaya Turabian
Digital Communications.
Singapore:
Mcgraw-Hill Book Company,
1995.
.