Rosandi, Rahmi Tasty, Yetti Supriyati, and Elindra Yetti. “Model Penilaian Kemampuan Penalaran Proporsional Pada Mahasiswa Calon Guru Anak Usia 6-7 Tahun”. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini 3, no. 2 (July 17, 2019): 448–460. Accessed October 2, 2026. https://obsesi.or.id/index.php/obsesi/article/view/209.