(3CUhd GdeMGceGJ GdLRGFjI(B.s (3GdLRA GdKGdK,s (3WQb GdWYf aj GdCMcGe GdLRGFjI (B/s - (3GdLhNOGQ, MSfs ((3MdH, ShQjG (B:s (3LGeYI MdH,s, 1991)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdeMGceGJs -- (3ShQjGs; (3GdWYf aj GdCMcGes -- (3ShQjGs