Gaya APA
Held, Gilbert. (1998).
Voice And Data Internet Working .
New York:
MCGRAW-HILL.
Gaya Chicago
Held, Gilbert.
Voice And Data Internet Working.
New York:
MCGRAW-HILL,
1998.
.
Gaya MLA
Held, Gilbert.
Voice And Data Internet Working.
New York:
MCGRAW-HILL,
1998.
.
Gaya Turabian
Held, Gilbert.
Voice And Data Internet Working.
New York:
MCGRAW-HILL,
1998.
.