SIMONS, M. D.; WIBAWA, K. A. An ethnomethodological analysis of students’ understanding of the concept of trigonometry in a high-stakes examination in South Africa. Beta: Jurnal Tadris Matematika, [S. l.], v. 14, n. 2, p. 93–106, 2021. DOI: 10.20414/betajtm.v14i2.459. Disponível em: https://jurnalbeta.ac.id/index.php/betaJTM/article/view/459. Acesso em: 13 sep. 2024.