Serial Port Complete, COM Ports, USB Virtual COM Ports and Ports ...
Jan Axelson
Midland G9 Pro Channels
Paolo Bertazzoni
Teach Yourself Improve Your German
Heiner Schenke & Paul Coggle
Introduction to Analog and Digital Communications, 2nd Edition
Simon Haykin & Michael Moher
Teach Yourself German
J. Adams & Paul Coggle
Teach Yourself (1)