(3efXeI GdhMOI GdGaQjbjI (B: (3OQGSI aj GdeQMdI GdJCSjSjI hGdTNUjI GdbGfhfjI (B/ s - (3MSf, cQjeI YHO GdQMje, s ((3HZOGO (B[(3GdYQGb(B] : s (3GdLGeYI GdeSJfUQjI, eYgO GdOQGSGJ GdBSjhjI hGdGaQjbjI (B987.s, 1987)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B71-73.s
Keywords: (3efXeI GdhMOI GdGaQjbjI(B.s; (3GdefXeGJ GdOhdjI GdGbdjejI(B.s