Barbosa, Humberto, Rego, Lyvia Julienne, Piero, Márcio, Noce, Rommel, Oliveira, Juliana, AND Gama, João Ricardo. " RISK-RETURN AND DIFFERENCE OF IPE WOOD PRICE IN PARÁ AND SÃO PAULO MARKETS" CERNE [Online], Volume 20 Number 1 (6 April 2016)