CHERNYAK Людмила, MEREZHKO Ніна, and KARAVAYEV Тарас. 2010. “cological afety of olymeric aterials on the ase of olystyrene”. NTERNATIONAL CIENTIFIC-RACTICAL OURNAL OMMODITIES ND ARKETS 9 (1):189-93. https://journals.knute.edu.ua/commodities-and-markets/article/view/1556.