DOUGLAS, Reward Kokah; FOU, Ayebatin; ARAKA, Peremelade Perez. Use of Rice Husk Ash for Copper, Chromium, Zinc, and Lead Bioremediation in Crude Oil-Contaminated Soil. European Journal of Applied Sciences, [S. l.], v. 10, n. 5, p. 27–33, 2022. DOI: 10.14738/aivp.105.12301. Disponível em: https://scholarpublishing.org/journals/index.php/EJAS/article/view/8437. Acesso em: 30 may. 2026.