The LDnet has compiled a very useful Bibliography on Circular Economy and Local Development at https://ldnet.eu/circular-economy-and-local-development/. It identifies 45 carefully selected references and in each case with the corresponding URL reference. Very helpful.
But they are far from the only ones that treat our topic, as you will see if you pop — “circular economy” bibliography — into Google, which reports more than 130,000 eventual references. (Ouch!)