NOORHIDAYAH, Ratri; MUSTHAFA , Muhammad Bachtiar; SISNO. Fourier Transform Infrared (FTIR) Spectroscopy of Humic Acid from Chicken Manure Compost with Different Biodecomposers: Spectroskopi Fourier Transform Infrared (FTIR) Asam Humat dari Kompos Kotoran Ayam dengan Biodekomposer Berbeda. Jurnal Ilmu Tanah dan Lingkungan, [S. l.], v. 23, n. 1, p. 38–43, 2021. DOI: 10.29244/jitl.23.1.38-43. Disponível em: https://journal.ipb.ac.id/jtanah/article/view/33541. Acesso em: 24 dec. 2025.