(3ZGdjI GdehGYX heUHGM GdeJYX hbHS GdhGYX (B/s - (3GdBdhSj, fYeGf Hf eMehO Hf YHO Gddg,s 1252-1317 (3g`(B.s ((3HjQhJ (B:s (3OGQ GdeYQaI ddWHGYI hGdfTQ,s, 1979)
Keywords: (3GdhYX hGdEQTGOs; (3GdOYhI GdESdGejIs