OKORO, S P A; AIGHEWI, I T; OSAGIE, C O. Effect of selected monoculture plantation species on the humid tropical soils of southern Nigeria. The Indian Journal of Agricultural Sciences, Delhi, India, v. 70, n. 2, 2013. Disponível em: https://epubs.icar.org.in/index.php/IJAgS/article/view/28043. Acesso em: 28 oct. 2025.