is Barrons enough for AP?

<p>Is it sufficient to study AP Bio and AP World History by only using Barron's/Princeton Review and still get a 5??</p>

<p>Help please!!</p>

<p>Yes of course.</p>

<p>Has anyone self studied and taken the new AP world test with 2012 Barron’s?</p>

<p>Gahhh >_<
I don’t know what to get.
Barron’s has never failed me before (because it overkills everything), but the reviews on amazon are soooo bad, and Princeton Review has really good reviews.</p>