Putri SR, Siregar IK. Peningkatan Keterampilan Bertanya Siswa melalui Pendekatan Problem-Solving. jgcj [Internet]. 2026May31 [cited 2026Oct.12];7(1):103-12. Available from: https://ejournal-fip-ung.ac.id/ojs/index.php/jgcj/article/view/5012