Nguyen Thanh Dong, et al. “Simultaneous Determination of Paracetamol and Diclofenac in Wastewater by High-Performance Liquid Chromatography Method”. <i>Vietnam Journal of Science and Technology</i>, vol. 61, no. 4, Aug. 2023, pp. 599-08, doi:10.15625/2525-2518/16418.