Viswanathan, T. (2000). Telecommunication Switching Systems and Networking. Prentice Hall.
Chicago-viite (17. p.)Viswanathan, Thiagarajan. Telecommunication Switching Systems and Networking. New Delhi: Prentice Hall, 2000.
MLA-viite (9. p.)Viswanathan, Thiagarajan. Telecommunication Switching Systems and Networking. Prentice Hall, 2000.
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