PRIMARY AND SECONDARY EDUCATION IN THE URALS IN 1909-1913 (BASED ON THE MATERIALS OF THE PERIODICAL PRESS). Journal of Pharmaceutical Negative Results, [S. l.], p. 2992–2998, 2022. DOI: 10.47750/pnr.2022.13.S08.376. Disponível em: https://mail.pnrjournal.com/index.php/home/article/view/4505.. Acesso em: 10 jun. 2026.