published by Damascus University in 2008 in Economy and research's language is العربية
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Abstract in English
References used
السلمي، علي- إدارة الإنتاجية، دار غريب، القاهرة 1991
Aldenderfer Mark S. and Blashfield Roger K., Cluster Analysis, sage Publications - The International Professional Publishers, Eighth Printing, 1991
Anderson D.; Sweeney D. J. and Williams T, Introduction to Statistics, West Publishing Co., 1981
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