Reference for a result in toric geometry I want to know where I can find the proof of the following theorem : if $X$ is a smooth toric variety, then $H^{\bullet}(X) \cong CH^{\bullet}(X)$. 
Thanks in advance ! 

In Section 5.2 of Fulton there is a theorem that says that for $X$ a smooth complete toric variety, $CH_*X \cong H_*X$, freely generated by the orbit closures. 
Your statement follows by Poincare duality and universal coefficient theorem. 
