(3aSdLI GdaWQjGJ (B/s - (3HdcQGej ,c(B. (3S ,ajQeG Q(B.(3fs; (3ajQeG (B.(3Q(B.(3f s; (3SQMGf , YHO GdQVG Wg s; (3TQja , ajGV eMeO s ((3GdehUd (B:s (3OGQ GdcJH ddWHGYI hGdfTQ ,s, 1988)
Keywords: (3GdaWQjGJ s