na INLIS000000000012282 20231202142641 231202||||||||| | ||| |||| || | 010-1223012282 id 621.3893 621.389 3 PEN p Penfold, R. A. Proyek elektronika audio Elex Media Komputindo 1987 vi, 76 hlm. : ilus. ; 21 cm. R24.24 - R24-0432 Audio Digital