1. Abreu, M. P. and Bevilaqua, A. S., 2000. Brazil as an Export Economy, 1880–1930. In: Cardenas, E., Ocampo, J. A. and Thorp, R., eds. An Economic History of Twentieth-Century Latin America, Vol. 1. New York: Palgrave.
2. All Japan Coffee Association. Importation Volume in Japan. All Japan Coffee Association [online]. Available from: http://coffee.ajca.or.jp /English/related/e01.html [Accessed October 4, 2014].
3. Appadurai, A., 1986. Introduction: Commodities and the Politics of Value. In: Appadurai, A., ed. The Social Life of Things. Cambridge, UK: Cambridge University Press.
4. Bartels, L., 1983. Oromo Religion: Myths and Rites of the Western Oromo of Ethiopia – An Attempt to Understand. Berlin, Germany: Reimer.
5. Bates, R., 1997. Open-Economy Politics: The Political Economy of World Coffee. Princeton, NJ: Princeton University Press.