R. Jacomini, C. J. C. Bacha, and K. G. Ferracioli, “Comparison between the politics of coffee in Brazil and Ethiopia since 1990”, Rev. Polit. Agric., vol. 24, no. 1, pp. 20–30, May 2015, Accessed: Sep. 20, 2026. Available: https://rpa.sede.embrapa.br/RPA/article/view/963