YAKUBU, M.; OJANUGA, A. Pedogenesis, weathering status and mineralogy of the soils on ironstone plateaux (laterites), Sokoto Nigeria. Bayero Journal of Pure and Applied Sciences, [S. l.], v. 6, n. 2, p. 93–100, 2014. DOI: 10.4314/bajopas.v6i2.19. Disponível em: https://www.ajol.info/index.php/bajopas/article/view/100083. Acesso em: 2 oct. 2026.