Ajani, A., A. Adeniji, S. Ayodabo, A. Alade, T. Afolabi, and S. Ganiyu. “Removal of Diclofenac-Na from Aqueous Solution onto H3PO4 Modified Composite Clay”. Chemical Bulletin of Kazakh National University, Vol. 106, no. 3, Aug. 2022, pp. 20-35, doi:https://doi.org/10.15328/cb1274.