(3ELQGAGJ GdJfajP aj GdehGO GdeOfjI hGdJLGQjI HebJVi bGfhf CUhd GdeMGceGJ GddHfGfj (B/s - (3eMeO, CMeO CHh GdhaGs ((3HjQhJ (B:s (3GdOGQ GdLGeYjI,s, 1984)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3bGfhf GdeQGaYGJs -- (3dHfGfs; (3JfajP GdCMcGes -- (3dHfGfs