SHPER VLADIMIR. The System of Profound Knowledge – Answer to the Challenges of the XXI Century. Global Journal of Human-Social Science, [S. l.], v. 23, n. E1, p. 19–33, 2023. Disponível em: https://socialscienceresearch.org/index.php/GJHSS/article/view/103620. Acesso em: 24 apr. 2024.