00451 2200181 4500001002100000035002000021245002200041110003900063260005400102300003000156084001100186082001100197650001100208650002300219990000900242990000900251990000900260INLIS000000000001505 a0010-1220000346 aKonservasi energi aDepartemen Pertambangan dan Energi aJakartabDepartemen Pertambangan dan Energic1980 aix, 704 p.c: ill ; 24 cm a338.91 a338.91 aENERGI aKONSERVASI ENERGI. a2445 a2445 a2445