(3YbhO GdGSJTGQGJ GdgfOSjI (B/ s - (3GdSfLbdj, YGOd YRJ, s ((3HZOGO (B[(3GdYQGb(B] : s (3eQcR GdHMhK GdbGfhfjI (B983.s, 1983)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B153-156.s
Keywords: (3GdYbhO GdgfOSjI(B.s