PEREZ DURAN, G. D. J. How to Implement Management by Systems Based on a New Systems Theory. International Journal Papier Public Review, [S. l.], v. 6, n. 1, p. 100-112, 2025. DOI: 10.47667/ijppr.v6i1.348. Disponível em: https://igsspublication.com/index.php/ijppr/article/view/348. Acesso em: 8 oct. 2025.