(3eTQhY JQeje eSLO YHO GdbGOQ GdOTWhWi (B: s (3CKQ Qbe (B((12 ))924(3g` (B- 1518(3e (B/ s - (3LGH Gddg Ydi LGH Gddgs; (3GdeLdS GdGYdi ddGKGQs ((3GdbGgQI (B: s (3GdeLdS GdGYdi ddGKGQ , s, 2001)
Keywords: (3GdeSGLO (B- (3eUQs; (3eUQ (B- (3GdGKGQ GdGSdGejIs; (3GdeSGLO (B- (3JQejes; (3GdeSGLO (B- (3YeGQIs; (3eSLO YHO GdbGOQ GdOTWhWis