(3GdWH GdfHhi (B/ s - (3GHf bje GdLhRjI(B: (3TeS GdOjf GHh YHOGddg eMeO Hf GHi HcQs; (3SjO GHQGgje (B((3JMbjb(B)s ((3GdbGgQI (B: s (3OGQ GdMOjK , s, 1991)
Keywords: (3GdWH GdfHhis; (3GdWH GdGSdGeis