APUYOR S. E. et al. Treatment of Petroleum Refinery Wastewater in a Constructed Wetland with the Use of Water Lettuce. Journal of Science Innovation and Technology Research, Nigeria, v. 10, n. 9, 2025. DOI: 10.70382/ajsitr.v10i9.050. Disponível em: https://africanscholarpub.com/ajsitr/article/view/1048.. Acesso em: 11 nov. 2026.