An Analysis of Undergraduate Students’ Difficulties in Mathematical Representations of Vector Addition. Jurnal Inovasi Pendidikan Sains dan Terapan (INTERN ), [S. l.], v. 5, n. 1, p. 29–37, 2026. DOI: 10.58466/j4mqpy39. Disponível em: https://jurnal.politap.ac.id/index.php/intern/article/view/2143. Acesso em: 24 may. 2026.