(3OQGSGJ aj GdSjGSI GdNGQLjI GdeUQjI ef GHf Whdhf Edi CfhQ GdSGOGJ (B/ s - (3Ydj GdOjf gdGds; (3eQcR GdHMhK hGdOQGSGJ GdSjGSjIs ((3GdbGgQI (B: s (3ecJHI GdfgVI GdeUQjI, s, 1987)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdfXe GdSjGSjIs