Monteiro, J. L., T. da Cruz, and A. Castro. “SYNTHESIS OF GRAFITE FROM AMAZONIAN RESIDUAL BIOMASS”. ITEGAM-JETIA, Vol. 5, no. 19, Sept. 2019, pp. 125-30, http://br940.teste.website/~itegamjetia/journal/index.php/jetia/article/view/504.