KIRANA, S. A. Students’ Perception of Quipper as an Online Practice Tool for the English Computer-based National Examination. IJET (Indonesian Journal of English Teaching), [S. l.], v. 6, n. 2, p. 248–264, 2017. DOI: 10.15642/ijet2.2017.6.2.248-264. Disponível em: https://jurnalftk.uinsby.ac.id/index.php/IJET/article/view/131. Acesso em: 10 may. 2024.