(3GdUMGaI MQaI hQSGdI s - (3SdGeI ehSjs ((3GdbGgQI (B:s (3eWHYI eUQ TQcI eSGgeI eUQjI (B,s, 1958)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3CNdGbjGJ GdUMGaI s; (3GdCYdGe hGdUMGaI s