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Source: http://www.emeraldinsight.com.ezproxy.etsu.edu:2048/Insight/viewPDF.jsp?contentType=Article&Filename=html/Output/Published/EmeraldFullTextArticle/Pdf/0810190108.pdf
Source: http://www.emeraldinsight.com.ezproxy.etsu.edu:2048/Insight/viewPDF.jsp?contentType=Article&Filename=html/Output/Published/EmeraldFullTextArticle/Pdf/0810190108.pdf