Nurhasanah, Chusni MM. Enhancing Students’ Awareness of Pubertal Signs and The Habit of Gratitude Through a Problem-Based Learning (PBL) Approach. JKGK [Internet]. 2025 Feb. 1 [cited 2026 Feb. 11];3(1):43-5. Available from: https://ejournal.uinsgd.ac.id/index.php/jkgk/article/view/1267