(3efgGL GdGSdGe aj GdMce (B/ s - (3GSO, eMeO, s 1900-1992(3, s; (3eGVj, efUhQ eMeO, s ((3HjQhJ, dHfGf (B: s (3OGQ GdYde ddedGjjf (B983.s, 1983)
(3GdfU HGddZI GdYQHjI eJQLe ef GdEfLdjRjI(B.s
(3jJVef EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdGSdGe hGdSjGSI(B.s