(3JGQjN GdYQGb Hjf GMJdGdjf (B-6-(3McheI GdeeGdjc ef SfI (B1162(3g(B-1749(3e Gdi SfI (B1247(3g(B-1831(3e(B:s - (3GdYRGhj ,YHGS s ((3HZOGO(B:s (3TQcI GdJLGQI ddWHGYI GdeMOhOI ,s, 1954)
Keywords: (3GdYQGb(B-(3JGQjNs