Pujasti, Mero Vinky. 2026. “Implementation of Constructivism Learning in Improving Understanding of The Concept of Building Flat For Grade 1 Students of SDN Ajung 01 Kalisat”. Jurnal Ilmiah Teunuleh: International Journal of Social Sciences 7 (2):249-55. https://doi.org/10.51612/teunuleh.v7i2.232.