Sindicat Professors de Secundària (aspepc·sps)

• http://secundaria.info/docu/sindicat:contactar#seu_central
• https://secundaria.info/docu/sindicat:contactar
• https://secundaria.info/portal/article.php?sid=20190703080623#cmtx_comments
• https://secundaria.info/portal/article.php?sid=20190524141814#cmtx_comments
• https://play.google.com/store/apps/details?id=info.secundaria.android.secundariainfo&hl=ca
• https://itunes.apple.com/es/app/secundaria-info/id1425642326?mt=8