Ceglarska-Jóźwiak, Joanna. 2022. “Procedure for Determining the Appropriate Payer of Social Security Contributions”. In Temporary Employment As an Atypical Form of Employment: No. 19 2022, edited by Tomasz Duraj. Vol. 19. Jurisprudence. Poland: Lodz University Press. https://doi.org/10.18778/8220-963-1.20.