SINGHAL, R. M.; SONI, S. Electrophoretic Fractionation of the Soil Humic Acids Under Different Forest Covers of Garhwal Himalayas (Mussoorie Area). Indian Forester, [S. l.], v. 116, n. 8, p. 669–673, 1990. DOI: 10.36808/if/1990/v116i8/8894. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/8894. Acesso em: 26 dec. 2025.