Sundari, R. D., Angraini, L. M., Herlina, S. and Zetriuslita (2023) “Pengembangan Perangkat Pembelajaran Berbasis Problem Based Learning (PBL) pada Materi Matriks untuk Meningkatkan Kemampuan Representasi Matematis Siswa Kelas XI IPA SMAN 1 Bukit Batu: (Development of Problem Based Learning (PBL) Learning Devices on Matrix Material to Improve Mathematical Representation Ability of Grade XI Science Students at SMAN 1 Bukit Batu)”, Journal of Research in Science and Mathematics Education, 2(1), pp. 25–35. doi: 10.56855/jrsme.v2i1.253.