คำบาล จ. A Development of Learning Package in Topic of Linear Equation with One Variable Using Inquiry Method (5Es+D) for Mathematics Problem Solving Ability for Grade 7th Students. Journal of Graduate School, Pitchayatat, Ubon Ratchathani Rajabhat University, [S. l.], v. 14, n. 3, p. 13–22, 2019. Disponível em: https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/237028. Acesso em: 17 may. 2024.