Error Analysis of Trigonometry Students in a Technological University. JPAIR Institutional Research, [S. l.], v. 7, n. 1, p. 56–66, 2016. DOI: 10.7719/irj.v7i1.372. Disponível em: https://philair.ph/index.php/irj/article/view/372.. Acesso em: 28 apr. 2024.