(3GdLZQGajI GdGbJUGOjI h GdGLJeGYjI ddHdOGf GdfGejI (B/s - (3aScj , QGch s; (3eRjGf s ((3ehSch (B:s (3OGQ GdJbOe ,s, 1984)
Keywords: (3GdGLJeGYjI s; (3GdGbJUGOjI s; (3GdHdOGf s; (3GdLZQGajI s