Gaya APA
STALLINGS, W., HIRSCH, M, [.
(2011).
Data and computer communications
(
9th ed.)
.
Boston:
Pearson.
Gaya MLA
STALLINGS, William., HIRSCH, Michael, [ed.].
"Data and computer communications".
9th ed.
Boston:
Pearson,
2011.
Buku.