(3HWdGf HjY edc GdZjQ (B/s - (3Mdej HgLJ HOhjs; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb (B- (3LGeYI GdbGgQI ,s, 1931)
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Keywords: (3fbd GdedcjI s; (3YbO GdHjYs; (3bGfhf GdJSLjds; (3HWdGf HjY edc GdZjQs; (3GdHWdGf GdeWdbs; (3HWdGf GdfSHjs