Integrated Production of Xylitol, Ethanol, and Enzymes from Oil Palm Empty Fruit Bunch through Bioprocessing as an Application of the Biorefinery Concept oleh Efri Mardawati, Maisyarah Isnaini S. Nawawi, Viola Caroline, Tania Widani Imanisa, Putri Amanda, Melbi Mahardika, Nanang Masruchin, Hana Nur Fitriana, Nova Rachmadona, Mohd Nizam Lani