(3GdefXeGJ GdOhdjI(B/s - (3eajO eMehO TgGHs ((3eUQ(B:s (3OGQ GdfgVI GdYQHjI(B,s, 1979)
(3jJVef HHdjhLQGajGJs
Keywords: (3bGfhf Ohdj YGes; (3efXeGJ OhdjIs