HA, T. T. (1990). DIGITAL SATELLITE COMMUNICATIONS, 2ND ED. MCGRAW HILL.
Chicago-čujuhus (17. p.)HA, T TRI. DIGITAL SATELLITE COMMUNICATIONS, 2ND ED. NEW-YORK: MCGRAW HILL, 1990.
MLA-čujuhus (9. p.)HA, T TRI. DIGITAL SATELLITE COMMUNICATIONS, 2ND ED. MCGRAW HILL, 1990.
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