Sinaga, Christa Voni Roulina, and Yanti Maria Marbun. “Pengaruh Pendekatan Contextual Learning Dan Perhatian Pada Interaksi Kelas Terhadap Kemampuan Pemecahan Masalah Matematika”. Journal of Education Research 5, no. 4 (November 8, 2024): 5308–5314. Accessed July 1, 2025. https://jer.or.id/index.php/jer/article/view/1736.