I Nyoman Bayu Pramartha and Ni Putu Yuniarika Parwati 2025. Analisis Penerapan Sintaks Model Pembelajaran Problem Based Learning Pada Mata Pelajaran Sejarah Materi Kelas XI Proklamasi Kemerdekaan Indonesia : Analysis of Problem Based Learning Model in History Subject, Grade XI Material Proclamation of Indonesian Independence. Nirwasita: Jurnal Pendidikan Sejarah dan Ilmu Sosial. 6, 1 (Mar. 2025), 69-74. DOI:https://doi.org/10.59672/nirwasita.v6i1.4596.