รู้สุข ก.; วงศ์เหลา เ.; ไชยณรงค์ ป. The Development of Mathematics Learning Packages through Inquiry Method on the Ratios of Trigonometry for Mathayom Suksa 4 students. Ubon Ratchathani Journal of Research and Evaluation, [S. l.], v. 4, n. 1, p. 79–87, 2021. Disponível em: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250969. Acesso em: 3 oct. 2026.