PENGARUH PENERAPAN MODEL PROBLEM BASED LEARNING (PBL) BERBASIS STEM PADA MATERI SUB KONSEP PERUBAHAN LINGKUNGAN TERHADAP HASIL BELAJAR PESERTA DIDIK KELAS X SMAN 11 BANJARMASIN. Tunjuk Ajar : Jurnal Penelitian Ilmu Pendidikan, [S. l.], v. 7, n. 1, p. 128–141, 2024. DOI: 10.33578/. Disponível em: https://jta.ejournal.unri.ac.id/index.php/JTA/article/view/145. Acesso em: 21 dec. 2025.