The effectiveness of jigsaw to improve students reading skill for the seventh grade students Of smp wahidiyah kediri in academic Year 2019/2020. DELTA, [S. l.], v. 2, n. 1, p. 1–5, 2021. Disponível em: https://jurnal.uniwa.ac.id/index.php/delta/article/view/81. Acesso em: 11 may. 2025.