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<![CDATA[Biblioteca Univ. Surcolombiana Search for 'au:"Sanchez Amaya, Guillermo" and su-to:Modelos de enseÃ±anza and au:Sanchez Amaya, Guillermo']]> https://biblioteca.usco.edu.co//cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Sanchez%20Amaya%2C%20Guillermo%22%20and%20su-to%3AModelos%20de%20ense%C3%83%C2%B1anza%20and%20au%3ASanchez%20Amaya%2C%20Guillermo&format=rss2 0 20