S, D. Newsletter Polish Polygraph Association (Polskie Stowarzyszenie Poligraferów) – Summary of Activities Over the Last Nine Months. European Polygraph, [S. l.], v. 20, n. 1, p. 85, 2026. DOI: 10.31749/2380-0550-EP2026-1-08. Disponível em: https://journals.uafm.edu.pl/ep/article/view/183. Acesso em: 2 jul. 2026.