KILON, Jarosław. FOREIGN TRADE IN THE CONVERGENCE PROCESS – RESEARCH METHODOLOGY OF TRADING COMPANIES IN THE PODLASKIE REGION. Ekonomia i Prawo. Economics and Law. Online. 27 December 2014. Vol. 12, no. 4, pp. 565-576. [Accessed 18 July 2024]. DOI 10.12775/EiP.2013.041.