1. Soils: their implications to human health;Abrahams;Sci. Total Environ.,2002
2. AFFC–Agriculture and Agriculture-Food Canada. http://www.agr.gc.ca/eng/home/?id=1395690825741 (Accessed on March 2016).
3. Arsenic contamination in Bangladesh groundwater: a major environmental and social disaster;Alama;Int. J. Environ. Health Res.,2002
4. Agriculture's Responsibility in Establishing Soil Quality Criteria, In Environmental Improvement – Agriculture's Challenge in the Seventies;Alexander,1971
5. Chapter 2 – soil health indicators under climate change: a review of current knowledge;Allen,2011