Suharti S, Handini O, Trisiana A. The Problem Based Learning Model Can Improve Students’ Writing Ability in Class XI Descriptive Texts.SP5 SMA Negeri 1 Sumberlawang. inovasi, pendidikan [Internet]. 2024 Jun. 15 [cited 2025 Dec. 6];2(1):56-61. Available from: https://ejurnal.unisri.ac.id/index.php/jppg/article/view/13205