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), pp. 69-74. doi: 10.59672/nirwasita.v6i1.4596.