(3GdWYf aj GdGMcGe HGdJejjR aj bGfhf GdeQGaYGJ GdeOfjI (B/ s - (3YHO GdhgGH, YHO GdQRGb, s ((3HZOGO (B[(3GdYQGb(B] : s (3OGQ GdMceI ddWHGYI hGdfTQ, (B412 (3g`(B. = 1991.s, 1991)
(3jJVef EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdWYf aj GdGMcGes -- (3GdYQGb(B.s; (3GdbGfhf GdeOfj(B.s