PENGARUH MODEL PROBLEM BASED LEARNING BERBASIS DISKURSUS MULTI REPRESENTASI (DMR) TERHADAP TERHADAP PEMAHAMAN KONSEP MATERI SEJARAH SISWA KELAS XI SMKS MAHARDHIKA. IPSSJ. 2026;3(06 Juni):3870-3882. Accessed October 21, 2026. https://ipssj.com/index.php/ojs/article/view/1551