(3GdfMdg (B: (3UGfYI GdYSd (B/ s - (3aJMj, JQGLjs ((3GdQjGV (B:s (3ecJHI GdYHjcGf,s, 1997)
Keywords: (3fMd GdYSds; (3GdMTQGJ GdfGaYIs; (3eQMdI fGTDhf UZGQ (B(10-14) (3SfIs