RAMESH, T; MANJAIAH, K.M; NGACHAN, S.V; RAJASEKAR, K. Chemical and structural characterization of soil humic substances under different land use systems in sub-tropical regions of northeast India. Indian Journal of Horticulture, [S. l.], v. 71, n. 03, p. 360–366, 2014. Disponível em: https://journal.iahs.org.in/index.php/ijh/article/view/1294. Acesso em: 1 jun. 2025.