na INLIS000000000034867 20160516142938.0 $a 978-979-1464-16-7 $0010-051600000000409 $a 428 WAL s C.2 $a 428 WAL s C.2 $a Walidi $a Step by Step to Speak English $a Yogyakarta $b PT. Citra Aji Parama $c 2006 $a Arpus Kab Magetan $a 41.787