ANALISIS KEBUTUHAN PENGEMBANGAN LEMBAR KERJA SISWA (LKS) BERBASIS PROBLEM BASED LEARNING PADA MATERI ELASTISITAS DAN HUKUM HOOKE KELAS XI DI SMA NEGERI 1 PALANGKA RAYA. Karst [Internet]. 2021 Jun. 28 [cited 2025 Jul. 23];4(1):`1-7. Available from: https://ejournals.umma.ac.id/index.php/karts/article/view/981