1. Adiel, R.K., 2004. Assessment of On-Farm Adoption Potential of Nutrient Management Strategies in Chuka Division, Meru south, Kenya. MSc Thesis, Kenyatta University, Kenya.
2. Investigation of the Effects of Eucalyptus camaldulensis on Performance of Neighbouring Crop Productivity in Western Amhara, Ethiopia;Alebachew,2015
3. Soil fertility management in Africa: a review of selected research trials;Bekunda,1997
4. Soil Fertility Management in Sub-Saharan Africa;Donovan,1998
5. Soil properties as influenced by phosphorus and nitrogen based manure and compost applications;Eghball;Agron. J.,2002