1. Yield and Response to Fungicide and Fertilizer of Peasant-Grown Arabica Coffee on Mt. Kilimanjaro, Tanzania
2. Yield and Response to Fungicide and Fertilizer of Peasant-Grown Arabica Coffee on Mt. Kilimanjaro, Tanzania
3. Van Dierendonck, F. J. E. (1959). The manuring of coffee, cocoa, tea and tobacco. Centre d'Etude de l'Azote, No. 3, Geneva, 1959, p. 33.
4. Van Dierendonck, F. J. E. (1959). The manuring of coffee, cocoa, tea and tobacco. Centre d'Etude de l'Azote, No. 3, Geneva, 1959, 41–42.
5. Riley, E. A. and Burdekin, D. A. (1964). A Handbook on Arabica Coffee in Tanganyika. Ed. by Robinson, J. B. D. Pub. by Tanganyika Coffee Board, Chapter 10, 163–165.