Olufemi, B. A., and A. Otuoze. “Comparative Adsorption Of Crude Oil Using Coconut Shell And Coconut Shell Activated Carbon”. Journal of Engineering and Technology (JET) 9, no. 2 (December 19, 2018): 1–25. Accessed May 18, 2024. https://jet.utem.edu.my/jet/article/view/1499.