(3edNUGJ GdHMhK (B:s (3GdeDJeQ GdOhdj dEOGQI GdchGQK (B: (3WhGQF (B90 /s - (3GdeDJeQ GdOhdj dEOGQI GdchGQKs (1990 : (3GdbGgQI(B)s ((3GdbGgQI (B:s (3CcGOjejI GdHMK GdYdej hGdJcfhdhLjG,s, 1990)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3EOGQI GdCReGJs -- (3eDJeQGJs; (3GdchGQKs -- (3eDJeQGJs