Coronavirus, scuola: Lettera150, appello per tamponi
https://www.open.online/2020/09/09/covid-19-tamponi-a-scuola-appello-lettera-150/
– Sito Web
https://www.open.online/2020/09/09/covid-19-tamponi-a-scuola-appello-lettera-150/
http://www.askanews.it/politica/2020/09/08/toscana-ceccardi-da-lettera-150-valide-proposte-per-turismo-pn_20200908_00314/
https://www.lettera150.it/wp-content/uploads/2020/09/20200908_LIBERO_Lettera150.pdf
https://formiche.net/2020/09/consulenza-professori-universita/
https://www.iltempo.it/politica/2020/09/04/news/governo-schiaffo-docenti-universitari-stralciata-norma-consulenze-emendamento-dl-semplificazioni-24421398/