Halstian, A. H., O. P. . Baula, and H. V. . Tarasenko. “A New Method for the Synthesis of 4-Aminobenzoic Acid – an Intermediate for the Production of Procaine”. Current Issues in Pharmacy and Medicine: Science and Practice, vol. 15, no. 2, Aug. 2022, pp. 123-7, doi:10.14739/2409-2932.2022.2.259850.