(3VMGjG GdLQjeI (B/ s - (3GdfOhI GdYdejI Mhd VMGjG GdLQjeI s (1988 : (3GdQjGV(B) s ((3GdQjGV (B: s (3GdeQcR GdYQHj ddOQGSGJ GdCefjI hGdJOQjH,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdLQjeI hGdeLQehf s -- (3eDJeQGJ s; (3ecGaMI GdLQjeI s -- (3eDJeQGJ s