Production of Lactic Acid from Empty Fruit Bunch of Palm Oil Using Catalyst of Barium HydroxideApsari Puspita Aini, Hyung Woo Lee, Johnner Parningotan Sitompul and Carolus Borromeus RasrendraMATEC Web Conf., 156 (2018) 06004DOI: https://doi.org/10.1051/matecconf/201815606004