1. The Hidden Wealth of Nations
2. V-Dem Institute. “Democracy for All? V-Dem Annual Report.” Gothenburg: University of Gothenburg, 2018. www.v-dem.net/media/filer_public/3f/19/3f19efc9-e25f-4356-b159-b5c0ec894115/v-dem_democracy_report_2018.pdf.
3. Wolf Tracks
4. Swaggering through Hell: The Rise and Decline of Panama’s Red Devil Buses;Szok;Folk Art Messenger,2010