WASZCZAK, Stanisław. Reflections on Loyalty as an Ethical and Economic Value. Edukacja Ekonomistów i Menedżerów, [S. l.], v. 23, n. 1, p. 12–23, 2012. DOI: 10.5604/01.3001.0009.5767. Disponível em: https://econjournals.sgh.waw.pl/EEiM/article/view/1538. Acesso em: 3 lip. 2024.