?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Gunawan+Suryoputro%2C+Gunawan&rft.aulast=Gunawan+Suryoputro&rft.aufirst=Gunawan&rft.btitle=The+Impact+of+the+Student-Student+versus+Teacher-Student+Interactions+on+Students'+Speaking+Skills&rft.date=23+February+2014&rft.genre=book