(3GdMeGjI GdLfGFjI ddYQV aj GdJTQjY GdeYGUQ (B/s - (3eMeO Rcj CHh YGeQs ((3GdGScfOQjI (B:s (3GdafjI ddWHGYI h GdfTQ ,s, 1985)
. 207-201(3HHdjhLQGajG(B: (3UaMGJ(B.s
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Keywords: (3GdLQGFe GdeGSI HGdYQVs; (3bGfhf GdYbhHGJ (B- (3GdbSe GdNGUs