(3aJGhi ESdGejI (B/s - (3GdSYhOjI(B.s (3GdQFGSI GdYGeI dEOGQGJ GdHMhK GdYdejI hGdEaJGA hGdOYhI hGdEQTGO(B.s (3GddLfI GdOGFeI ddHMhK GdYdejI hGdEaJGAs; (3YHO GdYXje, SYjOs ((3GdEScfOQjI, eUQ (B:s (3ecJHI GdEjeGf,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3Gdabg GdESdGejs; (3GdCMcGe GdTQYjIs