na YOGYA000000000012782 20140822180542 010-081400000012500 R 030 Ens ENSIKLOPEDI Nasional Indonesia, Cet. 3: Jilid 3: B - Byte Cet. 3, Jilid 3 Jakarta Delta Pamungkas 1997 592 Halaman 4118-BPAD/P.02