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1دورية أكاديمية
المؤلفون: Shoo, Luke P., Catterall, Carla P., Beyer, Hawthorne L., Cockbain, Paul, Duncan, Michael, Robson, Tim, Roche, Darren, Taylor, Howard, White, Zoe, Wilson, Kerrie
المصدر: Ecological Applications, 2021 Dec 01. 31(8), 1-12.
URL الوصول: https://www.jstor.org/stable/27092261
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2تقرير
المؤلفون: Cockbain, Paul Erik
المصدر: Cockbain, Paul Erik. Civil society and democratic consolidation in Poland. Masteroppgave, University of Oslo, 2006
الإتاحة: http://hdl.handle.net/10852/14173
https://www.duo.uio.no/bitstream/handle/10852/14173/1/41455.pdf