ÇÚÒÇÆí íÑÌì ÇÎÈÇÑäÇ Úä ÇáãáÝ ÇÐÇ ßÇä áÇíÚãá

http://www.2shared.com/document/21Hb..._equation.html

Çæ

http://www.upgulf.com/dldeXO83718.pdf.html