Kostić Н., and Rakićević М. “PT Schemes Organized by the Association of Chemical Engineers of Serbia - Acknowledging the World Water Day on March 22, 2022: Event Review”. HEMIJSKA INDUSTRIJA, vol. 76, no. 2, May 2022, pp. 125-9, https://ache-pub.org.rs/index.php/HemInd/article/view/992.