(3eYLe GdHdOGf (B/ s - (3jGbhJ GdMehi(B: (3TgGH GdOjf GHhYHOGddg jGbhJ Hf YHOGddg GdQhei GdHZOGOis ((3HjQhJ (B: s (3OGQ UGOQ , s, 1957)
Keywords: (3JbGhje GdHdOGfs; (3hUa hQMdGJs; (3GdHdOGf(B- (3eYGLes