(3ebOeI GdGMUGA GdMjGJj ddYdhe GdUMjI (B/s - (3OfcGf , QhHQJs; (3fGH , QjHjcG Lj s; (3ejdQ GdKGdK ,e(B.(3cdjfJhf s; (3GdNjGW ,CMeO MejO s ((3HZOGO(B:s (3eWHYI GdJYdje GdYGdj ,s, 1989)
Keywords: (3GdGMUGA GdhUaj s