van der Warf، Hayo؛ Petit، Jean (ديسمبر 2002). "Evaluation of the environmental impact of agriculture at the farm level: a comparison and analysis of 12 indicator-based methods". Agriculture, Ecosystems and Environment. ج. 93 ع. 1–3: 131–145. DOI:10.1016/S0167-8809(01)00354-1.
Alain Marcoux (أغسطس 2000). "Population and deforestation". SD Dimensions. Sustainable Development Department, Food and Agriculture Organization of the United Nations (FAO). مؤرشف من الأصل في 2011-06-28.
"Soil Degradation". Office of Environment Heritage. مؤرشف من الأصل في 2017-06-28. اطلع عليه بتاريخ 2015-04-23.
waterlog.info
ILRI, 1989, Effectiveness and Social/Environmental Impacts of Irrigation Projects: a Review. In: Annual Report 1988, International Institute for Land Reclamation and Improvement (ILRI), Wageningen, The Netherlands, pp. 18–34 . On line: [1]نسخة محفوظة 18 مايو 2019 على موقع واي باك مشين.
"Deforestation". National Geographic. مؤرشف من الأصل في 2017-01-05. اطلع عليه بتاريخ 2015-04-24.
Alain Marcoux (أغسطس 2000). "Population and deforestation". SD Dimensions. Sustainable Development Department, Food and Agriculture Organization of the United Nations (FAO). مؤرشف من الأصل في 2011-06-28.
ILRI, 1989, Effectiveness and Social/Environmental Impacts of Irrigation Projects: a Review. In: Annual Report 1988, International Institute for Land Reclamation and Improvement (ILRI), Wageningen, The Netherlands, pp. 18–34 . On line: [1]نسخة محفوظة 18 مايو 2019 على موقع واي باك مشين.