Wienhage, G. H., Ramos, E. S., Chiarello, L. M., Botton, V. and Wiggers, V. R. (2021) “Acidity Reduction of Bio-Oil by Methylic Esterification Reactions”, Angolan Mineral, Oil & Gas Journal, 2(2), pp. 21-27. doi: 10.47444/amogj.v2i2.4.