na INLIS000000000916092 20230412115017 0010-0423000059 ta 230412 g 0 ind 9794102342 669 669 BEU i Beumer. B.J.M Ilmu bahan logam / B.J.M Beumer Cet 2 Jakarta : Bhratara, 1994 viii, 180 hlm : ilus ; 21 cm Logam CL1CL13378 CL103378CL103378CL1