Statistics of Productivity and Effectiveness of Experimental Support of the Educational System (For Scientists and Education Experts). Mediterranean Journal of Social Sciences, [S. l.], v. 6, n. 5 S3, p. 62, 2015. Disponível em: https://www.richtmann.org/journal/index.php/mjss/article/view/7745.. Acesso em: 4 may. 2024.