(3GdbhGYO hGdfUhU GdaGQSjI (B/s (3aDGO YHOGdeYWi GdUjGOs ([(3HjQhJ(B) : s (3OGQ GdfgVI GdYQHjI , s, 1986)
Keywords: (3GddZI GdaGQSjIs; (3GdfMh GdaGQSis