ما قبل الكمبري (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "ما قبل الكمبري" in Arabic language version.

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archive.org

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doi.org

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geosociety.org

google.es

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harvard.edu

ui.adsabs.harvard.edu

independent.co.uk

msu.edu

geo.msu.edu

nih.gov

pubmed.ncbi.nlm.nih.gov

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nytimes.com

oup.com

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purdue.edu

engineering.purdue.edu

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semanticscholar.org

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stratigraphy.org

  • "Stratigraphic Chart 2022" (PDF). International Stratigraphic Commission. فبراير 2022. مؤرشف (PDF) من الأصل في 2022-04-02. اطلع عليه بتاريخ 2022-04-20.
  • Bleeker، W. (2004) [2004]. "Toward a "natural" Precambrian time scale". في Felix M. Gradstein؛ James G. Ogg؛ Alan G. Smith (المحررون). A Geologic Time Scale 2004. Cambridge University Press. ISBN:978-0-521-78673-7. also available at Stratigraphy.org: Precambrian subcommission

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wisc.edu

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