<p>So I’ve read through Barron’s Psychology, Barron’s Human Geography and Princeton Review’s Environmental Science prep books three times each. Of the information contained within the books themselves, I am well-versed. However, I’m wondering if I should supplement this knowledge with other sources as well. As there are only a few weeks before AP exams, internet resources would probably be best; I don’t want to order anymore books. </p>
<p>Recommendations?</p>