Comparative study of english proficiency of fourth year students from English teaching major of the Foreign Language Department who have already worked for a year at a call center versus fourth year students who have already worked for a year at an Educational center of the University of El Salvador year 2014./
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          | Auteur principal: | |
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| Autres auteurs: | , , | 
| Format: | Thèse Livre | 
| Langue: | anglais | 
| Publié: | 
        San Salvador :
          Universidad de El Salvador,
    
        2015
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| Sujets: | |
| Accès en ligne: | http://ri.ues.edu.sv/id/eprint/8646 Voir à l'OPAC  | 
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