SUHARTI, Suharti; HANDINI, Oktiana; TRISIANA, Anita. The Problem Based Learning Model Can Improve Students’ Writing Ability in Class XI Descriptive Texts.SP5 SMA Negeri 1 Sumberlawang. Jurnal Inovasi Pendidikan Guru, [S. l.], v. 2, n. 1, p. 56–61, 2024. DOI: 10.33061/jipg.v2i1.13205. Disponível em: https://ejurnal.unisri.ac.id/index.php/jppg/article/view/13205. Acesso em: 6 dec. 2025.