Abbas, I. I., El Hamaoui, B. M. R. and Najmeddine, H. M. J. (2019) “Application of calixpyrrole modified silica for the removal of 4-chlorophenol from aqueous media”, European Journal of Chemistry, 10(2), pp. 156–165. doi: 10.5155/eurjchem.10.2.156-165.1846.