(3GdGMRGH GdSjGSjI ai GdYGde GdKGdK (B((3YGde GdeYQaI (B117) / s - (3GSGeI GdZRGdi MQHs ([S.N] : (3GdeLdS GdhWfi ddKbGaI hGdafhf hGdGOGH , s, 1987)
Keywords: (3JGQjNs; (3GdYGde GdKGdKs; (3GdSjGSIs