(3TYQGA ehQJjGfjG GdbOeGA h GdeMOKhf (B: s (3YQV YGe dJGQjNge h BKGQge h fUhU ef TYQge (B/ s - (3ebdO, eMeO jhSas ((3GdOGQ GdHjVGA (B:s (3ecJHI GdhMOI GdYQHjI,s, 1962)
Keywords: (3GdTYQ GdYQHjs; (3ehQjJGfjGs