Gaya APA
Sippl, C, J.
(1985).
Data Communications
(
edisi ke 1)
.
Great Bitain:
The Macmillan Press Ltd, great britain.
Gaya MLA
Sippl, Charles, J..
"Data Communications".
edisi ke 1
Great Bitain:
The Macmillan Press Ltd, great britain,
1985.
Text.