SUDSANEIHA, A.; WANGKAEOHIRAN, T.; ANKASEM, P. A Study of Academic Achievement Based on Mathematical Process by a Learning Activitiy Package According to the Active Learning Concept for Prathomsuksa 4 Students. Journal of Graduate Research, [S. l.], v. 11, n. 2, p. 123–136, 2020. Disponível em: https://so02.tci-thaijo.org/index.php/banditvijai/article/view/241132. Acesso em: 2 oct. 2026.