تقييم النظام البيئي (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "تقييم النظام البيئي" in Arabic language version.

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archive.org

Constanza، Robert (15 مايو 1997). "The value of the world's ecosystem services and natural capital". Nature. ج. 387 ع. 6630: 253–260. Bibcode:1997Natur.387..253C. DOI:10.1038/387253a0.

archives.gov

obamawhitehouse.archives.gov

"Report to the President. Sustaining Environmental Capital: Protecting Society and the Economy" (PDF). يوليو 2011. مؤرشف من الأصل (PDF) في 2020-10-18.

doi.org

Constanza، Robert (15 مايو 1997). "The value of the world's ecosystem services and natural capital". Nature. ج. 387 ع. 6630: 253–260. Bibcode:1997Natur.387..253C. DOI:10.1038/387253a0.
Holzman، David C. (أبريل 2012). "Accounting for Nature's Benefits: The Dollar Value of Ecosystem Services". Environmental Health Perspectives. ج. 120 ع. 4: a152–a157. DOI:10.1289/ehp.120-a152. PMC:3339477. PMID:22469778.

harvard.edu

ui.adsabs.harvard.edu

Constanza، Robert (15 مايو 1997). "The value of the world's ecosystem services and natural capital". Nature. ج. 387 ع. 6630: 253–260. Bibcode:1997Natur.387..253C. DOI:10.1038/387253a0.

nih.gov

ncbi.nlm.nih.gov

Holzman، David C. (أبريل 2012). "Accounting for Nature's Benefits: The Dollar Value of Ecosystem Services". Environmental Health Perspectives. ج. 120 ع. 4: a152–a157. DOI:10.1289/ehp.120-a152. PMC:3339477. PMID:22469778.

pubmed.ncbi.nlm.nih.gov

Holzman، David C. (أبريل 2012). "Accounting for Nature's Benefits: The Dollar Value of Ecosystem Services". Environmental Health Perspectives. ج. 120 ع. 4: a152–a157. DOI:10.1289/ehp.120-a152. PMC:3339477. PMID:22469778.

web.archive.org

"How Much is an Ecosystem Worth? Assessing the Economic Value of Conservation" (PDF). The World Bank. أكتوبر 2004. مؤرشف من الأصل (PDF) في 2018-07-12.
"Report to the President. Sustaining Environmental Capital: Protecting Society and the Economy" (PDF). يوليو 2011. مؤرشف من الأصل (PDF) في 2020-10-18.

worldbank.org

documents1.worldbank.org

"How Much is an Ecosystem Worth? Assessing the Economic Value of Conservation" (PDF). The World Bank. أكتوبر 2004. مؤرشف من الأصل (PDF) في 2018-07-12.