(3UhQ ef SeGMI GdESdGe (B/s - (3GdQHjYI, YHO GdYRjR Hf YHO GdQMef Hf Ydjs ((3HjQhJ (B:s (3eDSSI GdQSGdI,s, 1980)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdJSGeM GdOjfjs; (3GdCNdGb GdESdGejIs; (3GdJSGeM (B((3CNdGb ESdGejI(B)s