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Writer : Jalilifar، Alireza ؛ Mostatabi، Leila ؛
Journal:Applied Language Studies»Autumn 2015, Volume 7 - Issue 2 Ranking Science-Research (Ministry of Science/ISC (38 page(s) - From 85 to 122 )
Keywords:Politenessconversation analysisrequestSpeech Act TheoryNonverbal/Verbal goods and services