Kennedy G
Electronic Communication Systems - 4th ed - NY McGraw-Hill 1993 - 763
ГФ-15982
Англи хэл дээр,
0-02-800592-9
telecommunications internet groupware textbooks
Electronic Communication Systems - 4th ed - NY McGraw-Hill 1993 - 763
ГФ-15982
Англи хэл дээр,
0-02-800592-9
telecommunications internet groupware textbooks