na INLIS000000000038427 20161013082033.0 $a 978-979-610-121-4 $0010-101600000001188 $a 510 SRI e C.4 $a 510 SRI e C.4 $a HJ. Sriyanto $a Easy Math $a ke-1 $a Yogyakarta $b Pustaka Widyatama $c 2007 $a Arpus Kab. Magetan $a 34.897-0