(3cJGH GdHjGf GdeZQH aj CNHGQ GdCfOdS h GdeZQH (B/ s - (3GdeQGcTj, EHf YPGQis; (3chdGf, L (B. (3Ss; (3HQhafSGd, djajs ((3HjQhJ (B:s (3OGQ GdKbGaI,s, 1967)
Keywords: (3GdCfOdSs; (3GdJGQjNs; (3GdeZQH GdYQHjs