Sisay, Moges Asmare, and Igor A. Mayburov. β€œThe Paradox of Informalized Growth: Shadow Economy Expansion and Fiscal Erosion in Ethiopia, 1990–2023”. Economy of Regions, vol. 22, no. 2, June 2026, pp. 461–474, doi:10.17059/ekon.reg.2026-2-16.