(3MbjbI GdeYGO Hjf GdOjf hGdadSaI (B/ s - (3eMeO MSjfi GHhSYOgs ([S.N] : (3TQcI GdUaG ddWHGYI hGdJQLeI hGdfTQ , s, 1990)
Keywords: (3GdadSaI GdGSdGejIs; (3GHf SjfGs; (3GdOjGfGJ GdhVYjIs