(3GdbSe GdNGU aj bGfhf GdYbhHGJ (B: s (3GdYOhGf Ydi Cef GdOhdI GdOGNdj(B-(3GdYOhGf Ydi GdfGS aj CTNGUge hCehGdge (B/ s - (3HgfGe, QeSjS s ((3GdEScfOQjI, eUQ (B:s (3efTCI GdeYGQa,s, 1982)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B. s
Keywords: (3bGfhf GdYbhHGJs -- (3eUQ s; (3LQGFe Cef GdOhdI s -- (3eUQ s; (3LQGFe GdGYJOGA Ydi GdCTNGUs -- (3bhGfjf hJTQjYGJ s -- (3eUQ s; (3GdbGfhf GdLfGFjs -- (3eUQ s