?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aulast=Garcer%C3%A1n+S%C3%A1ez&rft.au=Garcer%C3%A1n+S%C3%A1ez%2C+Jes%C3%BAs&rft.aufirst=Jes%C3%BAs&rft.inst=E.T.S.I.+de+Sistemas+Inform%C3%A1ticos+(UPM)+%3Chttps%3A%2F%2Foa.upm.es%2Fview%2Finstitution%2FETSI%3D5FSistemas%3D5FInfor%2F%3E&rft.date=2020&rft.degree=Master+thesis&rft.title=Quizzu%3A+Aplicaci%C3%B3n+m%C3%B3vil+para+aprender+ingl%C3%A9s+de+manera+social&rft.tpages=94