GROSH, R. C.; SINGHAL, R. M.; SHARMA, S. D. Electrophoretic Fractionation and Characterization of Humic Acids of the Soils of Doon Valley under Sal (<I>Shorea robusta</I>). Indian Forester, [S. l.], v. 106, n. 3, p. 205–211, 1980. DOI: 10.36808/if/1980/v106i3/11152. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/11152. Acesso em: 5 dec. 2025.