Yunulisman Telaumbanua (2026) “Penerapan Model Problem Based Learning untuk Meningkatkan Kemampuan Menulis Teks Anekdot Siswa Kelas X SMK Negeri 1 Sawo: The Implementation of the Problem-Based Learning Model to Improve Anecdotal Text Writing Skills of Tenth-Grade Students at SMK Negeri 1 Sawo”, Jurnal Bastra (Bahasa dan Sastra), 11(3), pp. 1590–1596. doi: 10.36709/bastra.v11i3.2789.