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1دورية أكاديمية
المؤلفون: Sung, Chiu-I
المصدر: VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations: Official journal of the International Society for Third-Sector Research. October 2016 27(5):2514-2535
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2دورية أكاديمية
المؤلفون: Wirgau, Jessica S., Farley, Kathryn Webb, Jensen, Courtney
المصدر: VOLUNTAS: International Journal of Voluntary and Nonprofit Organizations: Official journal of the International Society for Third-Sector Research. December 2010 21(4):611-630