harvie316 on "I need help with this php code"

<?php if (!is_page('Contact Us')) { ?>
---ADSENSE CODE)
<?php } ?>

So I have 4 pages I dont want adsense showing, at the moment I can only add the "contact us" page for adsense not to show.

I have another 3 pages I want to hide adsense on, how do I work this code?

I tried doing

<?php if (!is_page('Contact Us', 'checkout')) { ?>

but that didnt work

thanks