Calderoni Sansuini the imitated and fugued bass

I don't know it, but Gennaro Napoli's first volume is one of the best for that purpose.

I didn't use any books; I practiced the bass lines with more or less well-known texts, but not specifically oriented towards fugato and imitated bass, a subject that I addressed exclusively in lessons with the teacher.

Never heard of it, I found the imitation and fugato bass by Bruno Mazzotta to be good; I know there are examples in De Ninno's treatise on harmony.

ok I have both the Napoli and the De Ninno... Mazzotta eh I'll see what I find...