(3GdfRGY GdYQHj GdESQGFjdj (B:s (3aj VhA ejKGb hbQGQGJ GdCee GdeJMOI hGdbGfhf GdOhdj eY GdJQcjR Ydj ehba GdhdGjGJ GdeJMOI GdCeQjcjI (B/s - (3YHO GdYRjR eMeO SQMGfs ((3GdbGgQI (B:s [(3GdfGTQ ZjQ eMOO(B](3,s, 1987)
(3jTJed Ydj GQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdfRGY Hjf GdOhds; (3GdbGfhf GdOhdj GdYGes