Sembiring RKB, Sari ASP. ANALISIS KEMAMPUAN PEMAHAMAN MATEMATIKA BERBASIS PENILAIAN PORTOFOLIO. Cartesius [Internet]. 2022 Jun. 22 [cited 2026 Sep. 13];5(1):59-64. Available from: https://ejournal.ust.ac.id/CARTESIUS/article/view/2078