UMUHOZA, Rozata; HAKIZIMANA, Theoneste. Concrete Pictorial Abstract Approach Use in Teaching Mathematics on Secondary Students’ Participation in Six Selected Schools in Kicukiro District, Rwanda. African Journal of Empirical Research, [S. l.], v. 5, n. 4, p. 1243–1251, 2024. DOI: 10.51867/ajernet.5.4.102. Disponível em: https://ajernet.net/ojs/index.php/ajernet/article/view/814. Acesso em: 4 jun. 2026.