Rolly Rochmad P.
Alat transmisi data billing
Fakultas Teknik Universitas Indonesia, 1993
 UI - Skripsi Membership
Heijer, P.C. den
Komunikasi data = data communications
Elex Media Komputindo, 1987
 Buku Teks SO
Bertsekas, Dimitri P.
Data networks
Prentice-Hall, 1992
 Buku Teks
Loomis, Mary E.S.
Data communications
Prentice-Hall, 1983
 Buku Teks
Renton, R.N.
Data telecommunication
Pitman, 1973
 Buku Teks SO