Ritonga, Cindy Dwi, and Panggih Nur Adi. “Problem Solving Learning Model in Improving Civic Education Learning Outcomes in Supian Private Vocational School”. Prisma Sains : Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram 12, no. 1 (January 31, 2024): 275–284. Accessed August 16, 2025. https://e-journal3.undikma.ac.id/index.php/prismasains/article/view/10952.