Italsko godka: Porōwnanie wersyji

* {{cite book|last=Berloco, |first=Fabrizio |year=(2018). |title''[https://books.google.de/books?id=DYynDwAAQBAJ&pg=PA3#v=onepage&q&f=false The Big Book of Italian Verbs: 900 Fully Conjugated Verbs in All Tenses. With IPA Transcription, 2nd Edition]''. |publisher=Lengu |ISBN=9788894034813 |url=https://books.google.com/books?id=DYynDwAAQBAJ&pg=PA3#v=onepage&q&f=false |ref=harv}}

* {{cite book|last=Palermo, |first=Massimo |year=(2015). |title=''Linguistica italiana''. |publisher=Il Mulino |ISBN=9788815258847 |ref=harv}}.

* {{cite book|last=Simone, |first=Raffaele |year=(2010). |title=''Enciclopedia dell'italiano''. |publisher=Treccani |ISBN= |ref=harv}}.