Tolong jelaskan mengenai Referens dari Mata uang komplementer

Paul Glover Hometown Money: how to enrich your community with local currency. Greenplanners, 2013.

Greco, Thomas H. Jr. Money: understanding and creating alternatives to legal tender. White River Junction, Vt: Chelsea Green Publishing, 2001.

Lietaer, Bernard. The Future of Money. Random House, 2001.

Raddon, M. Community and money: men and women making change. Montreal: Black Rose Books, 2003.

Suhr, Dieter (1990). The Neutral Money Network (NeuMoNe): A Critical Analysis of Traditional Money and the Financial Innovation "Neutral Money"