OUATTARA, S., A. MANGOU-ALLALI, A. AMA-CAUPHYS, and L. COULIBALY. “ARSENIC, NICKEL AND LEADREMOVAL FROM UNDERGROUND WELLS BY ADSORPTION ON LATERITE SOIL”. International Journal of Engineering Technologies and Management Research, vol. 5, no. 2, Feb. 2018, pp. 229-38, doi:10.29121/ijetmr.v5.i2.2018.167.