The Influence of Nutrient Types and Starter Concentration of Clostridium acetobutylicum in Fermentation of Pineapple Peel into Bioethanol. ijcs [Internet]. 2024 Aug. 23 [cited 2025 Dec. 9];13(2):127-34. Available from: https://journal.unnes.ac.id/journals/ijcs/article/view/3853