LEVYTSKYI, I. Y. THE CALCULATION OF THE TARIFF FOR EXPRESS DELIVERY WITH ADDITIONAL COSTS. Science and Transport Progress , [S. l.], n. 1, p. 105–109, 2003. DOI: 10.15802/stp2003/21488. Disponível em: https://stp.ust.edu.ua/article/view/21488. Acesso em: 4 may. 2024.