(3GQTGO GdYHGO ddGSJYOGO djhe GdeYGO (B/ s - (3GdSdeGf , YHO GdYRjR GdeMeO s ((3GdQjGV (B: s (3eWGHY GdeOjfI , s, 1998)
Keywords: (3GdhYX h GdGQTGO s