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Madulu, Ruth; Chalamila, Betty Ngwega; Mwingira, Godfrey B. (2009). Training manual for extension officers on organic farming technologies for the restoration of degraded lands Bern, Switzerland: Centre for Development and Environment (CDE)
Madulu, Ruth; Chalamila, Betty (2004). Baseline Survey Report: Case study of Uluguru and Usambara mountains (Bigwa, Tangeni, Peko Misegese, Mashewa and Misalai villages) (Unpublished) Bern, Switzerland: Centre for Development and Environment (CDE)
Madulu, Ruth; Chalamila, Betty (2004). E410 ESAPP Project Report 2004 (Unpublished) Bern, Switzerland: Centre for Development and Environment (CDE)
