(3UfGYI GdRjhJ hGdOghf (B,(3W (B1 / s - (3aDGO YHOGdYRjR GMeO GdTjNs ([S.N] : (3OGQ GdfTQ ddLGeYGJ GdeUQjI , s, 1993)
Keywords: (3GdUfGYGJ GdZPGFjIs; (3UfGYI GdRjhJs; (3GdGMeGV GdOgfjIs; (3GdRjhJ hGdOghfs