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Nugroho, M. A. .; Septianus, Y. M. A. .; Faizin, M. .; Firdaus, M. D. .; Afwa, A. R. R. .; Bahetha, A. .; Muthmainnah, S. A. . OBSAFER: Hydrogen Power Plant from Soybean Straw and Tofu Liquid Waste in Kediri District. joe 2025, 10, 44-50.