(3efUI GdGYOGes - (3SYO(B. (3aGQhbs ((3GdecJH GdJLGQj ddWHGYI hGdfTQ hGdJhRjYs (3HjQhJs, 1967)
Keywords: (3eSQMjGJs; (3JeKjdjGJ JdaRjhfjIs