(3fXQjI GdOhdI (B: s (3hGdGSS GdYGeI ddJfXje GdSjGSj (B/ s - (3GdLQa , WYjeI s ((3GdbGgQI (B: s (3ecJHI GdbGgQI GdMOjKI , s, 1964)
Keywords: (3GdbGfhf hGdSjGSI s