(3GdbOQGJ GdNajI ai YGde GdMjhGfs : (3Hjf hMOI GdNdb hGdejJGajRjbGs - (3ceGd TQbGhi ZRGdis ((3GdbGgQIs (3OGQ GdeYGQas, 1996)
Keywords: (3GdMjhGfGJ (B- (3Ydes; (3GdMTQGJ GdfGaYIs