Polish Foreign Investment Law (The Law of December 23, 1988 on economic activity with the participation of foreign parties). Contemporary Central & East European Law, [S. l.], n. 3-4(79-80), p. 41–54, 1988. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1067. Acesso em: 6 oct. 2025.