To install Perl, you will need to download it from the Internet, as shown in the next few pages.
If you don't have Internet access, you can try taking your computer to a friend who does have such access, and connecting long enough to install Perl. You can also use a Zip drive or burn a CD from a friend's computer to bring the Perl software to your computer. There are also commercial shrink-wrapped CDs of Perl available from several sources (ask at your local software store), and several books include CDs with Perl.