ARTYUKH Тетяна, and SHEGINSKIY Олег. “esearch of irmness to ging of hoe ynthetic eather”. INTERNATIONAL SCIENTIFIC-PRACTICAL JOURNAL COMMODITIES AND MARKETS 9, no. 1 (June 4, 2010): 169–172. ccessed July 27, 2024. https://journals.knute.edu.ua/commodities-and-markets/article/view/1551.