(3GdMeGjI GdbGfhfjI ddBKGQ (B/s - (3Ydi SjO MSfs; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb(B-(3LGeYI GdbGgQI,s, 1989)
1
Keywords: (3GdbGfhf GdeOfjs; (3GdYbGQGJ PGJ GdbjeI GdJGQjNjI s; (3GdefbhdGJ PGJ GdbjeI GdafjI s; (3NWhW GdJLejds; (3GdefGWb GdCKQjIs; (3GdeHGfj GdJGQjNjI s; (3Mce GdHfGA Ydi GdCQGVj GdCKQjI s; (3gOe GdeHGfj GdJGQjNjI s; (3MeGjI GdCKGQ VO GdSQbIs; (3GdJQGK GdCKQj s