参考論文
Charity Mbalazi "A history of coffee growing in Zambia: the case of Kateshi and Ngoli estates in Kasama district,1967 to 2012":http://dspace.unza.zm/handle/123456789/5543
Charity Mbalazi "A history of coffee growing in Zambia: the case of Kateshi and Ngoli estates in Kasama district,1967 to 2012":http://dspace.unza.zm/handle/123456789/5543