Fatkur Rhohman, and Hesti Istiqlaliyah. “Analysis of Biogas Production From Fermentation Results of Pineapple Bark Waste As Main Raw Material”. Procedia of Engineering and Life Science 1, no. 1 (April 15, 2021). Accessed December 21, 2024. https://pels.umsida.ac.id/index.php/PELS/article/view/860.