L. V. Rudakova, E. Y. Rossiknina, O. B. Rudakov, KhorokhordinaЕ. A., and СhanH. D., “Improvement of extraction instrumental techniques determination of paracetamol by HPLC, TLC, photocolorimetry and digital colorimetry”, sorpchrom, vol. 13, no. 4, Nov. 2019.