na INLIS000000000020430 20150706173015 170126||||||||| | ||| |||| || || 979-781-270-7 0010-071500000020430 370.2 370.2 WAT k WATT, Fiona Kreasi Liburan/ Editor, f.agriningrum FITA Jakarta PT. Penerbit Erlangga 2005 32 hlm. ilus. 28 cm. Pendidikan dasar