na INLIS000000000013180 20150612080717.0 a ||| | 170609| ||| | 979 610 724 4 0010-061500000000213 420 420 SLA s Slamet Riyanto Speaking English is Easy cet.1 Yogyakarta Pustaka Widyatama 2012 202 hlm. 21 cm Bahasa Inggris 281/b/kpad/2015 282/b/kpda/2015 283/b/kpad/2015