https://biblioteca.ugb.edu.sv/cgi-bin/koha/opac-search.pl?q=ccl=an%3A%222238%22%20and%20su-to%3ACOMERCIO%20and%20au%3AMolina%20Salazar%2C%20Marjorie%20Gabriela%20and%20location%3AGEN%20and%20au%3AUniversidad%20Doctor%20Andr%C3%83%C2%A9s%20Bello%2C&format=rss2 Search results for 'an:"2238" and su-to:COMERCIO and au:Molina Salazar, Marjorie Gabriela and location:GEN and au:Universidad Doctor Andrés Bello,' at Biblioteca UGB 0 20