Sape, Herwandi. “PENGARUH PENDEKATAN PEMBELAJARAN ELPSA TERHADAP KEMAMPUAN MATEMATIS SISWA”. Jurnal Penalaran dan Riset Matematika 3, no. 2 (October 31, 2024): 115–120. Accessed April 7, 2025. https://journal.almeeraeducation.id/prisma/article/view/530.