URL: www.upch.edu.pe ... http://www.upch.edu.pe/vrinve/dugic/revistas/index.php/RHR/issue/archive
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q96723215
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/wpugh74epjbxnopqh6qauyluyy
URL: www.upch.edu.pe ... http://www.upch.edu.pe/vrinve/dugic/revistas/index.php/RHR/issue/archive
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q96723215
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/wpugh74epjbxnopqh6qauyluyy
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%222518-8526%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%222518-8526%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%222518-8526%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+2518-8526