Saraha AR, Abu SHN, Ardiansyah D. Pengaruh Model Pembelajaran Problem Based Learning (PBL) Berorientasi Higher Order Thinking Skills (HOTS) Terhadap Hasil Belajar Siswa Kelas XI SMA Negeri 2 Halmahera Selatan Pada Materi Koloid. j.edu [Internet]. 2023 May 30 [cited 2026 Jun. 12];21(1):266-71. Available from: https://ejournal.unkhair.ac.id/index.php/edu/article/view/5861