(3WGQb GdHTQi GdbGVi GdeacQ (B: s (3GdcdeGJ hGdHMhK GdJi CdbjJ ai GdfOhI GdYdejI GdCgdjI ddGMJaGA HGdeSJTGQ (B: (3WGQb GdHTQi HefGSHI GfJgGA hdGjJg GdbVGFjI HeLdS GdOhdi GdeUQi (B/ s - (3GHQGgje GdHjhei ZGfes ((3GdbGgQI (B: s (3OGQ GdTQhb , s, 1999)
Keywords: (3GdSdWI GdbVGFjIs; (3GdMUGfI GdbVGFjIs; (3GdbVGI (B- (3JQGLes; (3GdbVGI (B- (3JbGYOs; (3GdbGfhf (B( (3egfI (B)s