(3GdhSjW ai OYhi UMI GdJYGbO (B: (3hOYhi UMI GdJhbjY ef GdHjY (B/ s - (3eYhV YHOGdJhGHs ([S.N] : (3dLfI GdGYdGe hGdOQGSGJ GdeSJbHdjI , s, 1991)
Keywords: (3GdbGfhfs; (3GdbGfhf GdeOfis; (3GdYbhOs; (3GdJYgOGJs