SEPTIANDI, N. E. .; AINI, N. N. .; UMAMI, H. F. N. . Analysis Students Mistakes of Mathematics Major of IAIN Jember in Trigonometry Operations Precondition Calculus Courses. Proceeding International Conference on Science and Engineering, [S. l.], v. 3, p. 611–616, 2020. DOI: 10.14421/icse.v3.574. Disponível em: http://sunankalijaga.org/prosiding/index.php/icse/article/view/574. Acesso em: 13 may. 2026.