Suharti, S., Handini, O. and Trisiana, A. (2024) “The Problem Based Learning Model Can Improve Students’ Writing Ability in Class XI Descriptive Texts.SP5 SMA Negeri 1 Sumberlawang”, Jurnal Inovasi Pendidikan Guru, 2(1), pp. 56–61. doi: 10.33061/jipg.v2i1.13205.