UGANDA
Brown, E. and Hunter, H.H. Planting in Uganda; coffee, Pará rubber, cocoa. London, 1913. 176 pp.
Coffee and tea from Uganda. Imperial Institute. Bulletin. London, 1918, XVI.
Small, W. Coffee cultivation in Uganda. Imperial Institute. Bulletin. 1914, XII: 242–250.
UNITED STATES
Jones, A.C. Thea viridis, or Chinese tea plant, and the practicability of its culture and manufacture in the United States. Also some remarks on the cultivation of the coffee plant. Washington, 1877. 26 pp.
Kains, M.G. Chicory growing as an addition to the resources of the American farmer. U.S. Depart. of Agriculture. Div. of Botany. Bulletin, no. 19. Washington, 1898.
VENEZUELA
Ernst, A. El café de Liberia én Vénézuela. Caracas, 1878.
Huntington, L.M. The story of Tachira coffee. Tea and Coffee Trade Journal, 1917, XXXIII: 318–325.