ANCE JUSMAYA. Improving Students’ Grammar Mastery in Passive Voice by Using Jigsaw Method. SOSMANIORA: Jurnal Ilmu Sosial dan Humaniora, [S. l.], v. 2, n. 2, p. 215–221, 2023. DOI: 10.55123/sosmaniora.v2i2.1947. Disponível em: https://www.journal.literasisains.id/index.php/sosmaniora/article/view/1947. Acesso em: 19 mar. 2026.