WALCZYK, K. „Badania koniunktury - zwierciadło gospodarki” (conference account). Regional Barometer. Analyses & Prognoses, [S. l.], v. 11, n. 1, p. 115–117, 2013. Disponível em: https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/1145. Acesso em: 8 nov. 2024.