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 (Apr. 2021), 21-27. DOI:https://doi.org/10.47444/amogj.v2i2.4.