* Randall, Annie J. and David, Rosalind G., "Puccini & the Girl", Chicago: University of Chicago Press ISDN 0226703894* Ravenni, Gabriella Biagi and Michele Girardi, "Giacomo (Antonio Domenico Michele Secondo Maria) Puccini (ii)" in Grove Music Online, accessed 9 August 2012.
* Randall, Annie J. and David, Rosalind G., "Puccini & the Girl", Chicago: University of Chicago Press ISDN 0226703894* Ravenni, Gabriella Biagi and Michele Girardi, "Giacomo (Antonio Domenico Michele Secondo Maria) Puccini (ii)" in Grove Music Online, accessed 9 August 2012.