(3GdZhGUI JGQjN heZGeQGJ heSJbHd (B/ s - (3LeGd GdSjOs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1985)
Keywords: (3GdZhGUGJs; (3ZhGUGJ GdGYeGbs; (3GdYdhe GdHMQjIs