SODIMU, A. I.; RASHEED, F.; BAYO, D.; DAHUNSI, O. Environmental Implications of Heavy Metals in Spent Oil - Contaminated Soil of Kaduna Northern Guinea Savanna Ecozone of Nigeria. Journal of the Kenya National Commission for UNESCO, [S. l.], v. 6, n. 2, 2026. DOI: 10.62049/jkncu.v6i2.585. Disponível em: https://journals.unesco.go.ke/index.php/jknatcom/article/view/585. Acesso em: 22 jul. 2026.