(3TQM OjhGf GdNfSGA (B:s (3HGdGVGaI Gdi eQGKj SJjf TGYQI ef ThGYQ GdYQH s ((3HjQhJ (B:s (3OGQ GdJQGK ,s, 1968)
Keywords: (3TYQ GdQKGAs