RUSKOV, P.; BOEVSKY, I. CRM Strategies. Role and Significance of the Cooperative as a form of Social Entrepreneurship. Economy and Business Yearbook, [S. l.], v. 8, p. 105–113, 2023. DOI: 10.33919/EcoBY.23.8.10. Disponível em: https://ojs.nbu.bg/index.php/EcoBY/article/view/1342. Acesso em: 7 dec. 2025.