Rotua, Yuli Ani, Sakur Sakur, and Sehatta Saragih. “Meningkatkan Kemampuan Representasi Matematis Siswa Kelas X.7 SMAN 7 Pekanbaru Melalui Implementasi Model Problem Based Learning”. OMEGA: Jurnal Keilmuan Pendidikan Matematika 4, no. 3 (November 27, 2025): 283–294. Accessed December 3, 2025. https://ejurnal.univamedan.ac.id/index.php/jkpm/article/view/1083.