CHANPROM, P.; YAMSANG, N.; YAMSANG , W. The Development of Mathematics Learning Activities Using Constructivist Theory on Parallel Lines for Matthayom Sueksa Two Students at Ramkhamhaeng University Demonstration School (Secondary Level) . Journal of Humanities and Social Sciences, Rajapruk University, [S. l.], v. 10, n. 1, p. 352–367, 2024. Disponível em: https://so03.tci-thaijo.org/index.php/rpu/article/view/277495. Acesso em: 16 sep. 2026.