Azzouz, A.S.P., and R.D. Sulaiman. “Influence of Temperatures and Thermodynamic Parameters on PKa Values for Some Acids and Basic Imines Derived 3-Acetyl and 4-Acetyl Pyridines”. Asian Journal of Chemistry, vol. 25, no. 10, May 2013, pp. 5303-6, doi:10.14233/ajchem.2013.14063.