ILCHEVA, Maria. APPLICATION OF SOCIAL INNOVATIONS FOR IMROVEMENT OF SOCIAL SECURITY IN BULGARIA. KNOWLEDGE - International Journal , [S. l.], v. 59, n. 1, p. 77–82, 2023. Disponível em: https://ikm.mk/ojs/index.php/kij/article/view/6188. Acesso em: 16 jul. 2024.