(3GdJTQjYGJ GdLfGFjI GdNGUI (B/s - (3eQGO QTOi (B.s; (3GdfjGHI GdYGeI(B.s; (3HcQi YHOGddg(B.s; (3GdLeYjI GdELJeGYjI dCYVGA GdfjGHI GdYGeI (B.s ((3GdbGgQI (B:s (3GdLeYjI GdELJeGYjI dCYVGA GdfjGHI GdYGeI ,s, 1997)
Keywords: (3GdbGfhf GdLfGFi (B.s; (3GdJTQjYGJ GdLfGFjI (B. s; .(3CMcGe GdfbV GdYGeI(B-(3OhGFQ LfGFjI(B.s