https://catalogobiblioteca.ingemmet.gob.pe/cgi-bin/koha/opac-search.pl?q=ccl=an%3A4201%20and%20au%3ALipa%20Salas%2C%20V%C3%83%C2%ADctor%20Ra%C3%83%C2%BAl%20and%20se%3AMaster%20of%20Science&format=rss2 Search results for 'an:4201 and au:Lipa Salas, Víctor Raúl and se:Master of Science' at Biblioteca - Ingemmet 0 20