The short read
Chapter 3 of A Restless Art: How Participation Won and Why it Matters by Francois Matarasso (Calouste Gulbenkian Foundation, 2019) looks at the distinctions between community and participatory arts. It’s available as a free download here.
The long read
Both the A Restless Art book and website give an excellent examination of all aspects of Participatory Arts past and present.