BOYKOV, Georgi. Presentation of the New Book, "Educational question at the Bulgarian village." Sociological perspectives. Postmodernism Problems, [S. l.], v. 2, n. 3, p. 191–192, 2012. Disponível em: https://www.pmpjournal.org/index.php/pmp/article/view/133. Acesso em: 24 oct. 2026.