Hakeem, M., S. Rajendran, and P. P. Regis. “1-Hydroxy Ethylidene 1,1-Diphosphonic Acid (HEDP) As a Corrosion Inhibitor for Aluminium”. JOURNAL OF ADVANCES IN CHEMISTRY, vol. 8, no. 1, Dec. 2016, pp. 1479-90, doi:10.24297/jac.v8i1.4029.