PETKOVA, Ivelina. EXTERNAL ENVIRONMENT AND CONTROL MECHANISMS FORFUNCTIONING OF HOSPITALS. E-Journal VFU, [S. l.], n. 21, p. 500–511, 2024. DOI: 10.53606/evfu.21.500-511. Disponível em: https://ejournal.vfu.bg/index.php/vfu/article/view/74. Acesso em: 23 feb. 2026.