na INLIS000000000003861 20130612092151 Ind 010-061300000003861 Ind 538.2 538.2, Wha p Whalley, Margareth Percobaan dengan kemagnetandan kelistrikan, Margareth Whalley 1995 Semarang 31 hlm., ilus., 28 cm Magnet NBPNMAT