(3GdJNWjW ddJYdje GdaYGd (B/ s - (3Ojc, hdJQs; (3QjRQ, QhHQJ Cs; (3ZRGhj, eMeO PjHGfs ((3YeGf (B:s, 1991)
Keywords: (3GdJQHjIs; (3GdJNWjWs; (3CSGdjH GdJOQjSs