ROJSIRAPHISAL, P. Factors Effecting Difficulties in Learning Mathematics of Students in Primary and Upper Secondary Education Level. Journal of Education Yala Rajabhat University, Yala, Thailand, v. 3, n. 1, p. 80–90, 2024. Disponível em: https://so08.tci-thaijo.org/index.php/jeduyru/article/view/2667. Acesso em: 17 sep. 2026.