(3QaGYI GdWgWGhj (B: s (3QGFO GdJfhjQ aj GdYUQ GdMOjK (B/ s - (3YeGQI, eMeOs ((3GdbGgQI (B:s (3OGQ GdeSJbHd GdYQHj,s, 1984)
Keywords: (3GdJQGLes