(3GdGaZGfi hYHOg ai GTcGdjGJ GdJQHjI hGdbje hGdhYi GddGSjGSi (B/ s - (3Ydi RjYhQs ((3HjQhJ (B: s (3YR GdOjf , s, 1993)
Keywords: (3GdadSaI GdGSdGejIs; (3LeGd GdOjf GdGaZGfis; (3eMeO YHOg (B((3GdGeGe(B)s