K. Corrêa Bittencourt, T. R. de Paula, A. Juazeiro dos Santos, R. Tuyoshi Hosokawa, e V. A. Hoeflich, “PRODUCTIVE REGIONAL CONCENTRATION IN THE STATE OF PARANÁ: CASE STUDY OF NON-WOOD FOREST PRODUCTS”, RF, vol. 49, nº 4, p. 633–640, set. 2019.