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Cocoa and chocolate, 1765 - 1914
Clarence-Smith, William G., (2000)
Chocolate, cocoa and confectionery: science and technology
Minifie, Bernard Whitley, (1970)
The Cocoa and chocolate industry : The tree, the bean, the beverage
Knapp, Arthur W., (1923)
Cities and Agricultural Transformation in Africa : Evidence from Ethiopia
Vandercasteelen, Joachim, (2016)
Cities and agricultural transformation in Africa : evidence from Ethiopia
Secondary towns, agricultural prices, and intensification : evidence from Ethiopia
Vandercasteelen, Joachim, (2017)