(3GdUjZ GdbGfhfjI dOYGhi GdGMhGd GdTNUjI ddeUQjjf hGdGLGfH (B/ s - (3GdHfG, ceGd UGdM, s ((3GdbGgQI (B[(3eUQ(B] : s (3YGde GdcJH (B984.s, 1984)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdGMhGd GdTNUjIs -- (3bhGfjf hJTQjYGJs -- (3eUQ(B.s; (3GdOYGhi GdeOfjIs -- (3eUQ(B.s