Chinedu, Ogu, Kariuki David, Wanjohi John, and Owhoeke Elechi. “Synergistic Effect of Microorganisms and Charcoal on the Removal of BTEX and TPH from Crude Oil Contaminated Soil: 10.32526/ennrj/24/20250055”. Environment and Natural Resources Journal 24, no. 2 (February 5, 2026): 236–249. accessed October 5, 2026. https://ph02.tci-thaijo.org/index.php/ennrj/article/view/257872.