Sugihandardji, Chumaedi, et al. “Analisis Kemampuan Pemecahan Masalah Ditinjau Dari Kecerdasan Logis Matematis”. THEOREMA: The Journal Education of Mathematics, vol. 5, no. 1, Aug. 2024, https://e-journal.unimudasorong.ac.id/index.php/jurnaltheorema/article/view/1136.