na INLIS000000000026835 20150512090819.0 $a 978-979-464-1 $0010-051500000000255 $a 428 WAL s C.1 $a 428 WAL s C.1 $a Walidi $a Step by Step to Speak English $a Ke-1 $a Yogyakarta $b PT. Citra Aji Parama $c 2006 $a Arpus Kab. Magetan $a 41.786