na YOGYA-02090000019249 20090227022947.0 ind 010-020900000019249 621.3841 621.3841 Yur B YURY, Rm. Francis D Bikin sendiri radio transceiver dengan gelombang cahaya infra merah Rm. Francis D. Yury Solo Aneka 1991 167 hlm ilus 21 cm Bibliografi : hlm. 167 Radio - Alat Pengiriman dan penerima YOPDYOGB 11-03-06 1 rtrevTM 93P0038849