MEREZHKO Н.; TERNOVA А.; SIRENKO С. Ballpoint pen market in Ukraine. "INTERNATIONAL·SCIENTIFIC-·PRACTICAL·JOURNAL·COMMODITIES·AND·MARKETS", [S. l.], v. 24, n. 2, p. 96–103, 2017. Disponível em: https://journals.knute.edu.ua/commodities-and-markets/article/view/1187. Acesso em: 1 may. 2024.