(3TQM bGfhf GdYbhHGJ GdbSe GdNGU (B:s (3GdQThI hedMbGJgG (B- (3GNJdGS GdeGd GdYGe hGdYOhGf Ydjg hGdZOQ (B- (3GdJRjja hGdJRhjQ (B- (3GdbJd hGdVQH hGdLQM (B- (3LQGFe GdGLgGV (B- (3LQGFe GdYQV LQGFe GdGYJHGQ (B-(3LQGFe GdeGd (B/s - (3YeQ GdSYjO QeVGfs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI (B,s, 1986)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFjs; (3bGfhf GdYbhHGJ GdbSe GdNGUs