(3GdGbHGW ai GdSjGSI GdeUQjI (B:s (3ecQe YHjO hOhQg ai GdMQcI GdhWfjI (B/s - (3eUWai Gdabis ((3GdbGgQI (B: s (3OGQ GdTQhb ,s, 1988)
Keywords: (3GdGbHGWs; (3ecQe YHjOs; (3eUQs