“Bioethanol from Rice Washing Wastewater With Variations in Addition of NPK and Fermentation Time”. ALKIMIA : Jurnal Ilmu Kimia dan Terapan 8, no. 1 (February 29, 2024): 42–49. Accessed August 23, 2025. https://jurnal.radenfatah.ac.id/index.php/alkimia/article/view/29482.