(3GdVhGHW GdTQYjI dehba GdeSde aj GdaJf (B/s - (3Bd GdTjN, UGdM Hf YHO GdYRjR s ((3GdQjGV (B:s (3eWGHY TQcI GdUaMGJ GdPgHjI GdeMOhOI ,s, 1992)
(3fU eMGVQI GdbGgG UGdM Hf YHO GdYRjR Bd GdTjN (B.s
Keywords: (3GdhYX hGdEQTGOs -- (3GdaJfs; (3GdOYhI GdESdGejIs -- (3GdaJfs