Rede pública de telefonia comutada (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Rede pública de telefonia comutada" in Portuguese language version.

refsWebsite

Global rank Portuguese rank

622^nd place

10^th place

google.com.br

books.google.com.br

Tanenbaum, Andrew S. (2003). Redes de Computadores. [S.l.]: Elsevier. ISBN 978-85-352-1185-6
Zahariadis, Theodore B. (2003). Home Network Standards and Technologies. [S.l.]: Artech House. p. 13. ISBN 1-58053-648-4. The PSTN is circuit switched, primarily designed for voice transmission