Gulevich, A. L., Rakhman’ko, E. M., Egorov, V. V., & Smirnova, M. S. (2019). Anion-exchange extraction of mefenamic acid. Journal of the Belarusian State University. Chemistry, 2, 10-17. https://journals.bsu.by/index.php/chemistry/article/view/1236