A. Jadhav, Rajiv, et al. “Novel Analytical Approach for the Estimation of Oxalic Acid Content in Sodium Ascorbate by Reversed Phase-High Performance Liquid Chromatography”. Asian Journal of Chemistry, vol. 34, no. 9, Aug. 2022, pp. 2227-34, doi:10.14233/ajchem.2022.23803.