This requires the De reference operator use what you find at the end of reference, in Perl you use '->'

#!/usr/bin/perl 
my %hash = {'hello' => 'world',
        'says' => 'just another perl hacker'};
my $hashref = \%hash;

print "$hashref->{'says'} in the $hash{'world'}\n" ;
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Will return:
just another perl hacker in the world