na INLIS000000000029971 20130612132146 Ind 010-061300000029971 Ind 621.584 135 621.584 135, Aue m Auerbach, Richard Merakit sendiri antena radio amatir, Richard Auerbach 1992 Jakarta ix, 270 hlm, ilus, 20 cm Antena Radio Amatir NBPNMAT