Improving Students’ Vocabulary Mastery By Using U-Dictionary. Jurnal Ilmiah Spectral, [S. l.], v. 10, n. 1, p. 016–027, 2024. DOI: 10.47255/7y2v7385. Disponível em: http://journal.stbapontianak.ac.id/index.php/spectral/article/view/105.. Acesso em: 19 sep. 2024.