na INLIS000000000000679 I 0010-0317000677 Annual report 97 Jakarta : Lembaga Elektroteknika Nasional Industri 1998 13 hlm. 20 cm 537.5 Lem a 537.5 ELECTRONIC 184898112 184798112 184898112 184798112 184898112 184798112 184798112 184898112