(3JLQjO GdCZGfi (B/ s - (3GHf hGUd (B: (3LeGd GdOjf eMeO Hf SGde Hf fUQ GdOjf Hf SGde GdMehis ((3GdbGgQI (B: s (3eWHYI eUQ , s, 1955)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3GdGZGfis; (3JGQjN hfbOs; (3GdeLehYGJs