Intan Putri Juleka, Wahyu Fatahillah, Wikiapeian Pinim. The Effect of the Problem-Based Learning Method on Eleventh-Grade Students’ Narrative Writing Skills. Spes [Internet]. 2025 Dec. 26 [cited 2026 Apr. 19];1(1):1-10. Available from: https://journal.stkip-us.ac.id/index.php/spes/article/view/27