(3dHfGf (B!.. (3eGPG OgGc? (B/ s - (3Jbj GdOjf, efjQ, s 1917-1979(3, s ((3HjQhJ, dHfGf (B: s (3efThQGJ OGQ ecJHI GdMjGI (B979.s, 1979)
(3jJVef cTGaGJ(B.s
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B357-359.s
Keywords: (3dHfGfs -- (3JGQjNs -- (3GdGMJdGd GdaQfSj, (B1918-1946.s