БУКАЛОВ, А. Recurrence of phases of development of the society and new laws of historical development. Origin of language and culture: ancient history of mankind, [S. l.], v. 1, n. 4, p. 40–48, 2007. Disponível em: https://publishing.socionic.info/index.php/language/article/view/174. Acesso em: 22 jun. 2025.