VoIP and PBX security and forensics a practical approach Autor Androulidakis, Iosif I.

Available for University of the Philippines System via SpringerLink. Click here to access
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Industrial espionage and technical surveillance counter measurers Autor Androulidakis, Iosif, Kioupakis, Fragkiskos-Emmanouil

Available for University of the Philippines System via SpringerLink. Click here to access
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