1. Soils of Areka Agricultural Research Center. Technical Paper No 77;Abayneh,2001
2. Soil Vital Signs: A New Soil Quality Index (SQI) for Assessing Forest Soil Health;Amacher,2007
3. Applying Lime to Raise Soil pH for Crop Production (Western Oregon);Anderson,2013
4. Homogeneous soil fertility mapping through GIS for site specific nutrient management by QUEFTS model;Barman;Indian J. Soil Conserv.,2013
5. Phosphorous status and adsorption characteristics of acid soils from Cheha and Dinsho districts, southern highlands of Ethiopia;Bereket;Environ. Syst. Res.,2018