Hobbs, Marvin
Modern communications switching systems / by Marvin Hobbs
Tab Books, 1981
Buku Teks
Motor-uniselectors with noble-metal contacts in telephone switching systems / by Richard Krause
Van Nostrand Reinhold , 1970
Buku Teks
Electronic switching : digital central office systems of the world / edited by Amos E. Joel, Jr.
IEEE Press : Sole Worldwide distributor, J. Wiley, 1982
Buku Teks
Smith, Sydney F.
Telephony and telegraphy : and introduction to instruments and switching systems (electromechanical and reed-electronic)
Oxford University Press, 1978
Buku Teks
Roman, Murray
Telephone marketing
McGraw-Hill, 1976
Buku Teks