Schmidt; Friend. IP Telephony Using CallManager Express Lab Portfolio (1.). Pearson India.
Chicago Style aipamenaSchmidt; Friend. IP Telephony Using CallManager Express Lab Portfolio. 1. Pearson India.
MLA aipamenaSchmidt; Friend. IP Telephony Using CallManager Express Lab Portfolio. 1. Pearson India.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.