MANGWENDE, E.; CHIRUME, S. An APOS analysis of preservice mathematics teachers’ understanding of limits of trigonometric functions. JRAMathEdu (Journal of Research and Advances in Mathematics Education), [S. l.], v. 10, n. 4, p. 240–253, 2025. DOI: 10.23917/jramathedu.v10i4.10440. Disponível em: https://journals2.ums.ac.id/jramathedu/article/view/10440. Acesso em: 19 jan. 2026.