Buszko, Andrzej. “The LABOUR MARKET FLEXIBILITY IN THE CONTEXT OF THE SHADOW ECONOMY FOR THE CONSTRUCTION INDUSTRY”. Acta Scientiarum Polonorum. Oeconomia 19, no. 4 (January 3, 2021): 23-32. Accessed May 18, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/.37.