(3GdQYGjI GdahQjI ddeQVi h GdeUGHjf (B: s (3Odjd GdCWHGA aj JOQjH GdeSGYOjf GdWHjjf h GdeSYajf Ydi ELQGAGJ GdWhGQF GdWHjI (B/ s - (3dhjS GdUZjQ, CQfhdO e(B.s ((3GdEScfOQjg (B:s (3efXeI GdUMI GdYGdejI (B- (3GdecJH GdEbdjej dTQb GdHMQ GdeJhSW,s, 1988)
Keywords: (3GdESYGa GdChdjs