* ''L'estetica dei versi'', New Era Publications International ApS, 2012, Copenaghen<ref>https://www.lronhubbard.it/books/ron-series/poet-lyricist/details.html</ref>
* ''L'estetica dei versi'', New Era Publications International ApS, 2012, Copenaghen<ref>https://www.lronhubbard.it/books/ron-series/poet-lyricist/details.html</ref>