The Book “History of Geothermal Energy in the World, from its Origins to the 20th Century” by Raffaele Cataldi and Mario César Suárez Arriaga has been published. You can order here: http://www.tepsnc.it/it/history-of-geothermal-energy-in-the-world-from-its-origins-to-the-20th-century/
Zambia
Geothermal Stories #1 by Helen Robinson