V. N., Eboatu,. Comparative Study of the Impact of Class Repetition and Mass Promotion on Students’ Academic Achievement in Anambra State. European Scientific Journal, ESJ, [S. l.], v. 13, n. 28, p. 394, 2017. DOI: 10.19044/esj.2017.v13n28p394. Disponível em: https://eujournal.org/index.php/esj/article/view/10066. Acesso em: 16 jun. 2025.