N. H. . Salsabila, H. A. . Priawan, I. N. Hasanah, A. H. Mulyadi, M. Naveed, and A. . Hamad, “Effects of concentration of NPK fertilizer as a Nitrogen Source in fermentation of Bioethanol”, RiCE, vol. 3, no. 2, pp. 63–68, Jan. 2025.