1. Baillie, I.C., Burton, R.G.O., 1993. Ngwazi Estate, Mufindi, Tanzania. Report on Land and Water Resources, with Special Reference to the Development of Irrigated Tea. Part I: Land and Soil Suitability. Soil Survey and Land Research Centre, Silsoe College, UK.
2. Burgess, P.J., 1992. Responses of tea clones to drought in Southern Tanzania. Unpublished Ph.D. thesis. Silsoe College, Cranfield Institute of Technology, UK.
3. Burgess, P.J., 1993a. An update on the yield responses of young tea clones to drought. Ngwazi Tea Research Unit Quarterly Report 12, unpublished, 8–17.
4. Burgess, P.J., 1993b. An update on phyllochrons. Ngwazi Tea Research Unit Quarterly Report 13, unpublished, 3–10.
5. Responses of young tea (Camellia sinensis) clones to drought and temperature. I. Yield and yield distribution;Burgess;Experimental Agriculture,1996