na INLIS000000000014377 20190425031231 0010-0419000458 ta 190425 0 978-602-394-655-6 028.5 028.5 HER s Heru Kurniawan 123 Balita Pintar Berhitung / Heru Kurniawan Jakarta : Bhuana Ilmu Populer, 2017 63 hlm : ilus. ; 21 cm Feny Nida Fitriyani ANAK DPAD/29929/19 DPAD/29930/19