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Geschäftsbericht / Verein der am Rohkakaohandel Beteiligten Firmen e. V
(1965)
Review of cocoa
(1992)
World cocoa situation
(1993)
Analysis of the world cocoa market
Akiyama, Takamasa, (1984)
Analysis of the world coffee market
Akiyama, Takamasa, (1982)
Commodity market reforms : lessons of two decades
Akiyama, Takamasa, (2001)