KSIĄŻEK, Piotr; WŁACH, Rafał; RZEMEK, Cezary; JAROSZYŃSKA, Anna; PĘKALSKI, Tomasz; ZDROJKOWSKI, Jarosław; ZYGO, Maciej. The ratio analysis – the instrument for effective management. Polish Journal of Public Health, Lublin, Poland, v. 120, n. 2, p. 188–193, 2010. Disponível em: https://czasopisma.umlub.pl/pjph/article/view/2257. Acesso em: 8 jul. 2025.