Subagiono, E. A., K. Kusnaningsih, and R. . Wulandari. “INCREASING STUDENTS UNDERSTANDING IN CLASS VI SOCIAL STUDIES LEARNING MATERIAL THROUGH SOFT CARD STRATEGY”. Maktab: Jurnal Pendidikan Dan Teknologi, vol. 1, no. 3, Dec. 2022, pp. 648-55, http://journal.citradharma.org/index.php/maktab/article/view/726.