(3JdbjM aghe Cgd dCKQ aj Yjhf GdJGQjN hGdSjQ (B/s - (3GHf GdLhRj, YHO GdQMef Hf Ydj Hf eMeO,s 508-597 (3g`(B.s ((3HjQhJ (B:s (3OGQ GdCQbe Hf CHj GdCQbe,s, 1997)
Keywords: (3JQGLes; (3GdSjQI GdfHhjIs