Yuswantoro, Y. “THE TEACHING SPEAKING BY USING DISCUSSION METHOD TO INCREASING ORAL PROFICIENCY IN THE REKAYASA PERANGKAT LUNAK (RPL) OF ELEVENTH CLASS AT SMKN I LABANG- BANGKALAN”. JURNAL ILMIAH BAHASA DAN SASTRA, vol. 4, no. 1, Nov. 2017, doi:10.21067/jibs.v4i1.1949.