NOWICKI, Henryk; KUCHARSKI, Krzysztof. The Regulation of an Economic Activity Associated with the Provision of Detective Services (Selected Problems. Teka Komisji Prawniczej PAN Oddział w Lublinie, [S. l.], v. 11, n. 1, p. 271–289, 2018. DOI: 10.32084/tekapr.2018.11.1-17. Disponível em: https://ojs.academicon.pl/tkppan/article/view/6130. Acesso em: 13 may. 2024.